Within one hour (or less) from Ko Olina Beach Villas, visitors can explore a sprawling cactus garden with an otherworldly feel. The twisting trails through this 60-acre expanse lead guests past a plumeria grove, baobab trees from Madagascar, spherical golden barrel cactus and curly octopus agave from South America, henna plants from Asia and the Middle East, and more. Day trippers can make an afternoon of this adventure, pack a lunch, and settle down at one of the tables for a picnic.
The park is open daily, sunrise to sunset (closed December 25 and January 1). Be sure to bring your own water. There is no drinking water available. Walking shoes are recommended, as the path is uneven and has loose rocks.