Limahuli Garden & Preserve, National Tropical Botanical Garden.

Focused on the nature of Kauai Located on the north shore of Kauai Island, this place is one of the most biologically diverse valleys in the Hawaiian archipelago. It is home to dozens of plants and birds, surrounded by mountains. This green space is special, I highly recommend visiting it. I did a self-guided tour, and you will need about two hours to explore this area.