New York City's only aquarium definitely makes the trip to Coney Island worthwhile. It has more than 8,000 sea creatures, and its exhibits feature seahorses from around the world and Alien Stingers (jellyfish). Children love the hands-on Discovery Center, and the Aquatheater's marine mammal demonstration, starring the California sea lions, is spectacular. The feeding sessions for sharks, penguins, walruses and sea otters are narrated by aquarium staff. Exhibits are both indoors and out—so dress appropriately. Avoid summer crowds by going early in the day or after 2 pm. Open Monday-Friday 10 am-6 pm, Saturday and Sunday 10 am-7 pm (closes earlier September-April). US$13 adults, US$10 seniors, US$9 children ages 2-12. Pay what you wish on Friday after 3 pm. Surf Avenue at West Eighth Street (subway line F or Q to West Eighth Street in Coney Island), Brooklyn, New York City. Phone 718-265-3474. http://www.nyaquarium.org.