Christmas vacation is a great time to check out activities at the Atlantic City Aquarium. At 11 a.m. daily from Sunday, Dec. 26, through Dec. 31, visitors can watch and interact with a diver in scuba gear as he or she hand-feeds stingrays and sharks inside the 25,000-gallon tank. At noon and 3 p.m. daily, it's feeding time for juvenile cow-nose rays, bat rays, southern rays and shovel-nose sharks. At 2 p.m., get close to the aquarium's more unusual inhabitants at the Exotic Animal Show. Hours are 10 a.m. to 5 p.m. Admission is $8 for adults, $6 for seniors and $5 for children ages 4 to 12. Children younger than 3 are admitted free. The aquarium is at Atlantic City's Historic Gardner's Basin. Call 609-348-2880.