This isn't the owners fault and I really wanted to love this house because of it's beautiful location, very nice host and the amenities that came with with it, but two things spoiled the experience.
As other reviewers have noted, the house is adjacent to a fairly busy road. The beautiful lagoon and park are just across that road from the house. We were unprepared for just how popular this road and park were with the local hot rod and motorcycle enthusiasts.
From roughy 10am-10pm every day cars and motorcycles would run up and down this road (multiple passes from the same vehicles) screeching tires, doing burnouts and revving engines. With no AC in the house, windows and patio doors were always open. The sound from the road was so loud in the house that at many times you could not carry on a conversation or watch TV.
Secondly, the area (and much of Hilo) is infested with Coqui Frogs. These frogs begin their song as soon as the sun goes down and the noise averages about 88-90 decibels. Again, no AC, so windows must be open, this made it very difficult for the little kids to fall asleep.
As I've said, neither of the noise issues is the fault of the owner and I can appreciate the problems it creates for them.
The house itself is old and needs a very thorough cleaning and refresh of moisture damaged furniture and fixtures, however, the wonderful and free selection of water toys in the outdoor shed was a hug benefit to us. We used them often. Great place. Too noisy