We stayed one week in Liz' house with our 11 and 13 years old kids. Liz's information of Big Island was really precise and helpful. Whenever we asked some questions by e-mail she replied quickly with a lot of effort. The house has more than enough space for 4 persons, nice view into the "jungle" from upstairs, pretty garden, and it is very quiet too. It is very convenient that you can park the car right in front of the house door in a carport which actually is located under the living room and the kitchen.
Our main reason for visiting Big Island were the Hawaii Volcanoes National Park and the black beaches. Therefore we chose the southeast area of Big Island for our stay. Best snorkeling for kids was Wai´opae tide pools. In addition, we really enjoyed the hot water pool of Ahalanui Beach Park!! For children we can also recommend the Carlsmith Beach Park in Hilo - we even swam & snorkeled with sea turtles. One of best scenic black beaches is in the Kaimu Beach Park. It was really nice was to walk there in the evening.
Mahalo Liz!