Whether you fancy stretching out on a hammock between swaying palm trees, straddling a surfboard and paddling into the waves or watching the sun go down from the second-story great room, every seat is the best seat in the house at this 1.1-acre Kauai estate, where an entire wall folds back to let tropical breezes into nearly 5,000 feet of luxurious living space. Guests also enjoy a cottage with a workshop and gym, an outdoor bar and chef’s kitchen and truly jaw-dropping views in every direction.