Waikiki Beach is one of the best spots on Oahu to get out on the water with a surfing lesson or stand-up paddleboarding tour. It’s also possible to check out the beach aboard a duck or catamaran sunset tour, or gaze into the ocean on a submarine excursion. If you’d rather relax, soak up the sun on the sandy beach. The site is visited on most Oahu tours, including those that also hit other Honolulu highlights like the Bishop Museum, Iolani Palace, and Chinatown before heading farther afield to the Polynesian Cultural Center on the North Shore, Hanauma Bay, and Sea Life Park Hawaii on the east side of the island. Visitors who want to cram in the most sites on Oahu can even book helicopter or circle-island tours, both of which depart from Waikiki and showcase the entire island.