Dreamy Tropical Tree House

Probably the most famous treehouse in Hawaii, and it earns it. It stands fifteen feet up in the ohia and fern jungle of Fern Forest, in the Puna district about ten miles from Hawai'i Volcanoes National Park. You climb steep stairs and enter through a trap door; underneath the house hangs a covered swinging bed where you'll waste entire afternoons. It is genuinely off-grid: solar panels run the lights (turn things off when you leave or you'll drain the batteries), the shower and toilet run on catchment rainwater, and the hosts leave bottled water for drinking. The outdoor shower has rotating glass panels and a waterfall head, open to the jungle. Know what you're signing up for: the last stretch of road is bumpy red cinder, this is rural lava-zone Puna with no shops nearby, and it rains a lot — that's why everything is so green. Book far ahead.