Mauna Loa Observatory Tours

We had 3 adults staying there. It was advertised for 3 adults, however, the futon foldout was only big enough for a kid. We took pictures of our adult kids and their heads went over the futon. However. After complaining, the owners dropped off a double/queen blow up mattress, about the 3 day into the stay, meanwhile one of the kids had to move into our room. So, bad news, the room was not set up for 3 adults, but good news after days of complaining, the bed was corrected.