Outdoor spaces at Mystic Aquarium in Mystic, CT, will open May 22 at 50 percent occupancy. Safety protocols will include temperature screenings for staff and guests, online timed tickets for admission and one-way pathways. Guests must wear face protection. Outdoor space includes the Penguin Pavilion, Marsh Trek, Pacific Northwest habitats and the Arctic Coast habitat featuring New England’s only beluga whales. Buy tickets online. Map.