visitors to the saint louis zoo enjoy watching a seal poke his head up for air at the sea lion sound in st louis on august 16 2013 sea lion sound combines the sea lion basin and sea lion show in a 15 acre exhibit this is the only zoo in north america where visitors can walk through an underwater tunnel into the sea lions habitat to see the animals swimming around them upibill greenblatt w07a82.jpg from सनी lion View Photo