If you choose to book a stay at a 4-star hotel in Tonaki-jima Island, you'll usually find lots of conveniences to ensure you're comfortable, such as a restaurant, gym and pool. You can experience high-quality service and upscale accommodations. Choose a 5-star hotel and you'll have access to a few more perks — think on-site spas, concierge assistance and indulgent turndown services. You'll most likely get additional amenities and first-rate services at a 5-star retreat, though both are terrific options for luxury travelers.