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THE ISO HOTEL, Trademark Collection by Wyndham

3.5 star property
Beachfront living combines the best of both worlds: snorkeling in crystal-clear waters by morning and exploring coastal paths by bicycle in the afternoon.

Choose dates to view prices

Travelers find their rhythm at The ISO by Castle, where the white sand beach extends the resort. Snorkeling is at guests' doorstep, the outdoor pool offers a refreshing alternative, bike rentals ease coastal exploration, and the water dispenser keeps everyone hydrated.

Reviews

8.4 out of 10
Very good

Popular amenities

  • Air conditioning
  • Bar
The current price is ￥49,568
￥64,456 total
includes taxes & fees
Jan 18 - Jan 19

Room options

Available filters for rooms
Showing 20 of 20 rooms

House, 1 Bedroom, Non Smoking (Beach)

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 1 King Bed

Suite, 1 Bedroom, Non Smoking, Ocean View

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 1 King Bed

Deluxe Room, 1 King Bed, Non Smoking, Ocean View

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 1 King Bed

Room, 1 King Bed, Non Smoking, Ocean View

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 3
  • 1 King Bed

Room, 1 King Bed, Non Smoking, Oceanfront

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 3
  • 1 King Bed

Room, 1 King Bed, Non Smoking, Partial Sea View (Pool View)

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 3
  • 1 King Bed

Premium Room, 1 King Bed, Non Smoking, Oceanfront

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 3
  • 1 King Bed

Deluxe Room, 2 Double Beds, Non Smoking, Ocean View

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 2 Double Beds

Room, 2 Double Beds, Non Smoking, Ocean View

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 2 Double Beds

Room, 2 Double Beds, Non Smoking, Oceanfront

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 2 Double Beds

Room, 2 Double Beds, Non Smoking, Partial Sea View (Pool View)

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 2 Double Beds

Premium Room, 2 Double Beds, Non Smoking, Oceanfront

Highlights

Balcony
Air conditioning
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
Shower/tub combination
  • Sleeps 4
  • 2 Double Beds

Beach House Suite (2nd Floor, Stair Access Only)

  • Sleeps 4

One Bedroom Ocean View (2nd Floor, Stair Access Only)

  • Sleeps 4

Premium Ocean Front View (1st-3rd Upper Floors, Stair Access Only)

  • Sleeps 2

Run Of House

  • Sleeps 2

Partial Ocean Pool View 1st-2nd Floor

  • Sleeps 3

Ocean Front Room

  • Sleeps 3

Ocean View Room

  • Sleeps 3

Deluxe Ocean View

  • Sleeps 4
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About the neighborhood

Located on the beach, THE ISO HOTEL, Trademark Collection by Wyndham is in Waipouli, a neighborhood in Kapaa. Holoholoku Heiau and Hikinaakala Heiau are local landmarks, and travelers looking to shop may want to visit Coconut Marketplace and Kapaa Shopping Center. Smith's Tropical Paradise and Lydgate Beach are also worth visiting. Spend some time exploring the area's activities, including golfing.
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Map
96746, HI, Kapaa, 4-796 Kuhio Hwy

What's nearby

  • Waipouli Beach - 3 min walk - 0.3 km
  • Coconut Marketplace - 14 min walk - 1.2 km
  • Fuji Beach - 15 min walk - 1.3 km
  • Lae Nani Beach - 3 min drive - 1.5 km
  • Wailua Beach - 3 min drive - 1.9 km

Getting around

  • Lihue Airport (LIH) - 31 min drive

Restaurants

  • ‪McDonald's - ‬4 min walk
  • ‪Starbucks - ‬6 min walk
  • ‪Taco Bell - ‬8 min walk
  • ‪Waipouli Deli & Restaurant - ‬4 min walk
  • ‪Kenji Burger - ‬13 min walk

About this property

THE ISO HOTEL, Trademark Collection by Wyndham

Resort near Coconut Marketplace
Take advantage of a garden, a bar, and a restaurant at THE ISO HOTEL, Trademark Collection by Wyndham. This resort is a great place to bask in the sun with a beachfront location, beachfront dining, and snorkeling.
Other perks at this resort include:
  • An outdoor pool
  • Bike rentals, smoke-free premises, and a water dispenser
  • Guest reviews speak highly of the beach locale, pool, and helpful staff
Room features
All 78 rooms have comforts such as laptop-friendly workspaces and air conditioning, as well as thoughtful touches like high-speed internet. Guest reviews speak positively of the clean rooms at the property.
Other conveniences in all rooms include:
  • Bathrooms with shower/tub combinations and free toiletries
  • 42-inch flat-screen TVs with cable channels
  • Wardrobes/closets, balconies, and refrigerators

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  • Pool
  • Restaurant
  • Air conditioning
  • Bar
8.6 out of 10, Excellent, 1,008 reviews
The price is ￥34,615
￥46,174 total
includes taxes & fees
Jan 19 - Jan 20
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Property amenities

Internet

  • Available in all rooms: High-speed internet

Food and drink

  • A bar/lounge
  • A restaurant

Restaurants on site

  • The Bullshed Restaurant

Things to do

  • Bicycle rentals
  • Outdoor pool
  • Snorkeling
  • Yoga classes

Family friendly

  • In-room refrigerator
  • Outdoor pool

Conveniences

  • Limited-hour front desk
  • Water dispenser

Outdoors

  • Garden
  • On the beach

Accessibility

  • No elevator

More

  • 3 floors
  • 5 buildings
  • Smoking not allowed
  • Water dispenser usage encouraged

Room amenities

Bedroom

  • Bedsheets provided
  • Blackout drapes

Bathroom

  • Free toiletries
  • Private bathroom
  • Shower/bathtub combination
  • Towels provided

Entertainment

  • 42-inch flat-screen TV with cable channels

Food and drink

  • Coffee/tea maker
  • Refrigerator

More

  • Air conditioning
  • Ceiling fan
  • Laptop workspace

Policies

Check-in

Check-in start time: 3:00 PM; Check-in end time: 10:00 PM
Minimum check-in age: 18

Check-out

Check-out before 11 AM
Late check-out subject to availability
A late check-out fee will be charged

Special check-in instructions

The front desk is open daily from 7:00 AM - 10:00 PM
Front desk staffed during limited hours
Information provided by the property may be translated using automated translation tools

Access methods

Front desk (limited hours)

Pets

Pets not allowed

Children and extra beds

Children are welcome
Rollaway/extra beds are not available

Property payment types

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • Resort fee: USD 35.39 per accommodation, per night
The resort fee includes:
  • Additional inclusions
  • Fitness/yoga classes
  • Newspaper
  • Parking
  • Self parking

We have included all charges provided to us by the property.

Optional extras

  • Late check-out is available for a fee (subject to availability)

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
Tax ID - W-34434930-01
This property accepts credit cards and debit cards; cash is not accepted
Safety features at this property include a smoke detector
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room

We should mention

This property does not have elevators
Only registered guests are allowed in the guestrooms

Property is also known as

Castle Mokihana
Castle Mokihana Hotel
Castle Mokihana Hotel Kapaa
Castle Mokihana Kapaa
Mokihana Of Kauai Hotel Kapaa
ISO. Island. Sky. Ocean. Resort Kapaa
ISO. Island. Sky. Ocean. Resort
ISO. Island. Sky. Ocean. Kapaa
ISO. Island. Sky. Ocean.
ISO Sky Ocean Resort Kapaa
The ISO by Castle Kapaa
The ISO by Castle Resort
The ISO. Island. Sky. Ocean.
The ISO by Castle Resort Kapaa

Frequently asked questions

Does THE ISO HOTEL, Trademark Collection by Wyndham have a pool?

Yes, this property has an outdoor pool.

How much does it cost to stay at THE ISO HOTEL, Trademark Collection by Wyndham?

As of Jan 17, 2026, prices found for a 1-night stay for 2 adults at THE ISO HOTEL, Trademark Collection by Wyndham on Jan 18, 2026 start from ￥49,568, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Is THE ISO HOTEL, Trademark Collection by Wyndham pet-friendly?

No, pets are not allowed at this property.

What time is check-in at THE ISO HOTEL, Trademark Collection by Wyndham?

Check-in start time: 3:00 PM; Check-in end time: 10:00 PM.

What time is check-out at THE ISO HOTEL, Trademark Collection by Wyndham?

Check-out is at 11 AM. Late check-out is available for a fee (subject to availability).

Where is THE ISO HOTEL, Trademark Collection by Wyndham located?

Nestled on the beach, this Waipouli resort is within 1 mi (2 km) of Waipouli Beach and Coconut Marketplace. Fuji Beach and Lae Nani Beach are also within 1 mi (2 km).

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Reviews

THE ISO HOTEL, Trademark Collection by Wyndham Reviews

8.4

Very Good

8.8

Cleanliness

9.0

Location

8.4

Staff & service

8.2

Property conditions & facilities
Rating 10 - Excellent. 482 out of 1002 reviews
Rating 8 - Good. 321 out of 1002 reviews
Rating 6 - Okay. 125 out of 1002 reviews
Rating 4 - Poor. 42 out of 1002 reviews
Rating 2 - Terrible. 32 out of 1002 reviews

Reviews

8/10 Good

Matthew

Liked: Cleanliness, amenities, property conditions & facilities
Convenient location and great views
Stayed 5 nights in Jan 2026

10/10 Excellent

Faith

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Are stay at the ISO was fantastic. The staff was very helpful with places to check out and the overall area was well kept.
Stayed 4 nights in Dec 2025

10/10 Excellent

krystal

Liked: Cleanliness, amenities, property conditions & facilities
We loved our stay. The views were amazing!!! And enjoyed the hotel amenities they were great. We will be returning
Stayed 3 nights in Dec 2025

10/10 Excellent

Bruce

Liked: Cleanliness, staff & service, property conditions & facilities
This hotel is situated close to restaurants and shopping, and it has great ocean views for less than you would pay at other Kapa'a locations.
Stayed 7 nights in Nov 2025

10/10 Excellent

David

Liked: Cleanliness, amenities, property conditions & facilities
It was a wonderful place to stay.The room was clean.The view was spectacular! And the staff was very friendly and accommodating. Helped us with a cooler, snorkel gear and suggestions on where to go. I would definitely recommend this place!
Stayed 10 nights in Dec 2025

4/10 Poor

Sidhartha B

Liked: Cleanliness
Front desk need some training for a better customer interaction, I was not informed of the mandatory resort fee at the time of booking. Room was decent and the location of the hotel is very good
Stayed 7 nights in Dec 2025

8/10 Good

Candie

Liked: Cleanliness, amenities, property conditions & facilities
Clean room beautiful view!
Stayed 2 nights in Dec 2025

6/10 Okay

Aakanksha

Liked: Cleanliness
Disliked: Amenities
Well centrally located, small room, cold pool making it unusable during our entire stay. Breakfast is cold and grab and go. Yoga in the morning with ocean views was the highlight.
Stayed 4 nights in Dec 2025

10/10 Excellent

Lia Lizet

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Hotel is nice but unfortunately too much construction going on at the time of stay and restaurant was closed. I would consider coming back once construction is complete. Overall, liked the location and the stunning view of the ocean.
Stayed 3 nights in Oct 2025

10/10 Excellent

Samantha

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Loved this place. We enjoyed our room, staff was always nice and friendly. Loved being able to check the bikes out. For the price for the ocean view, you can’t beat it. Would definitely stay here again!
Stayed 6 nights in Sep 2025

4/10 Poor

Chris

Disliked: Cleanliness, staff & service, amenities, property conditions & facilities
The view was great. The room was very old. Patio door barely worked. The restaurant is closed.
Stayed 6 nights in Nov 2025

10/10 Excellent

Leesa

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Such a nice getaway my husband and I had at the ISO. From our room we could look out at the pool and beautiful ocean. Super comfy bed and pillows. Great size room. The staff is super nice and helpful. So friendly too! I will definitely stay there again once I get back to Kauai
Stayed 2 nights in Sep 2025

8/10 Good

Nick

Disliked: Amenities
Location was great, ocean view and chairs were nice. Room is pretty bare bones and the restaurant being closed felt like we were missing out on drinks and meals on site. Chickens will likely wake you up early each day but they were fun to watch running around. Pool was nice to hang out around outside.
Stayed 8 nights in Oct 2025

10/10 Excellent

Carolyn

Liked: Cleanliness, staff & service, property conditions & facilities
Always love coming here. Disappointed that the restaurant was under construction. Beautiful sunrises. Helpful staff.
Stayed 6 nights in Sep 2025

10/10 Excellent

Angel

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Loved the ocean view from my room. The room was clean and staff was super friendly and helpful to all my questions. Most importantly to me was that the walls were thick or insulated enough that i couldn't hear any of the adjacent neighbors through them.
Stayed 3 nights in Sep 2025

8/10 Good

Donna

Liked: Cleanliness, amenities, property conditions & facilities
Great location, bikes were nice for the bike path, breakfast,grab and go was helpful.. property was older but well kept.
Stayed 4 nights in Jul 2025

10/10 Excellent

Kiarah

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Had a lot of amenities like a nice grab and go breakfast as well as bikes you could rent out. They also did morning yoga and had a great pool.
Stayed 2 nights in Jul 2025

10/10 Excellent

Celina

Liked: Cleanliness, staff & service, property conditions & facilities
Great location, friendly staff, good amenities
Stayed 4 nights in Apr 2025

10/10 Excellent

Kyle

Liked: Cleanliness, staff & service, property conditions & facilities
Our stay was great! The ISO is in a great location within walking distance to several beaches and food options.
Stayed 2 nights in May 2025

8/10 Good

CHUNMEI XIE VAN

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff were very friendly and very accommodating to make our stay enjoyable. Our room was quite comfortable with a kitchen and separate bedroom although there were a few areas needing minor repair and painting.
Stayed 7 nights in Jul 2025

10/10 Excellent

Brian

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The ISO is a great affordable option to some of the other overblown resorts in the area. Rooms are clean and comfortable, staff is helpful, and the hotel is conveniently located close to some great restaurants and island excursions. While it may not have the bells and whistles of nearby options, it has a pool, a great continental breakfast, and EVERY room is ocean-view.
Stayed 7 nights in Jun 2025

10/10 Excellent

Natania Delfin

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Quiet, serene and conveniently located.
Stayed 3 nights in Apr 2025

10/10 Excellent

DWARAKESH

Liked: Property conditions & facilities
Great views outside the balcony
Stayed 3 nights in Jun 2025

10/10 Excellent

Steve

Liked: Cleanliness, amenities, property conditions & facilities
Nothing to dislike like about the stay. Will recommend for friends for certain who want to visit Kauai. Experience was amazing, along with the staff.
Stayed 2 nights in Jul 2025

10/10 Excellent

Codey

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent location very nice staff , our ac unit was faulty However with it only being a 2 night stay it wasn’t worth the hassle, they were extremely friendly I’m sure if I pushed the issue they would have dug into it, also was fully booked
Stayed 2 nights in Aug 2025