Waikiki Aquarium

Waikīkī Aquarium

Small, cheap aquarium right on the shore

Hours
Daily 9am-4:30pm
Tickets
Adults $12
Address
2777 Kalakaua Ave at the end of Kapiolani Park, right on the shore

Open since 1904, this is one of the older aquariums in the US, and small enough to see in an hour. You get close to reef fish found only in Hawaii, jellyfish and chambered nautiluses. The outdoor pool sometimes houses a Hawaiian monk seal. It sits right beside the shore, so it fits after a swim.