"Best Aquarium" -Yankee Magazine. Discover 70 live species, over 100 interactive experiences, seasonal changing exhibits and events, and the Ecology, Culture, History, and Opportunity for steardship of the Lake Champlain Basin. The 2.2 acre Leahy Center environmental campus also features the Lake Champlain Basin Program Resource Room, Lake Champlain Navy Memorial, ECHO's Eclectic Gift shop and the ecology-themed Think! Cafe. Open year-round, 10am-5pm, except Thanksgiving, Christmas Eve & Day.