Looking for something to do after school? Every Wednesday, the Aquarium hosts an interactive activity on the lawn. You can enjoy stories by the sea, or maybe a critter encounter or sometimes a creative movement session. The activities last anywhere from 10 to 20 minutes and are designed for ages 4 to 8, but everyone is welcome. Free with admissions to the Aquarium.

Discover if fish sleep on an after-dark flashlight tour of the Aquarium. Find the sleeping spot for the red-toothed triggerfish or the rock-mover wrasse. What color are yellow tang at night? Minimum age 5 years: youngsters must be accompanied by an adult. $10/adult, $7/child ($14/10 for non-members).

Draw fish, label fish, and compare fish to determine: What makes a Fish a Fish? Why do some have barbels and whiskers, while others inflate or spit? Can fish change color? Do they really change gender? The class is followed by a self-guided scavenger hunt of the exhibits. $5/person, $8 nonmembers

Spend a week of summer learning what lives in Hawaiian waters. What's the best way to learn? By doing! Snorkel, swim and explore the coast from Waikiki to Diamond Head. After a morning of outside adventures, the Aquarium turns into our classroom. Learn about the animals in our exhibits and watch them being fed on special behind-the-scenes tours. For marine biologists ages 8-12 years. All students should be confident swimmers and enjoy snorkeling. $275/child ($325) non-members.