This garden was originally built for flood protection. It offers events like camping, drawing or painting classes, and specific catch-and-release fishing days on the weekends!
Turtle Beach, also known as Laniakea Beach, on the North Shore, is one of the best places to see these magnificent sea turtles. They are often out lying on the sand.
Another one of the free activities Oahu has to offer is stunning waterfalls. All over the island, you can see and sometimes even go swimming under the waterfall!