Best 824 things to do in Kailua, HI

Discover Waikiki's underwater world on a two-tank dive with all gear included.

Spot migrating humpbacks with a marine biologist crew on a private 2-hour tour

Spot humpback whales with a biologist-led crew on a comfortable 2-hour boat tour

Learn to surf with expert instructors; all skill levels welcome

Plant native shoreline species and learn how dunes protect Oahu’s coast in 45 minutes

Explore multiple reefs with marine biologists and enjoy a turtle sighting guarantee on an afternoon snorkel.

Spot humpback whales, then snorkel with turtles and fish in a small group

Witness winter humpbacks at sunset on a small-group biologist-led cruise.