Saint Louis, MO

Robert Satchell played a key role in the design of the Life Support System (LSS) for the Sea Lion Sound exhibit at the St. Louis Zoo. This captivating exhibit offers visitors a unique and immersive experience with its sea lion stadium, natural main pool, underwater viewing tunnel, and holding pools.

Spanning 1.5 acres and costing $18 million, the habitat and arena were specifically designed to accommodate 11 California sea lions. The exhibit showcases two state-of-the-art marine mammal exhibits, creating a dynamic and engaging environment for both the sea lions and zoo visitors.

Impressively, the Sea Lion Sound exhibit holds nearly 250,000 gallons of saltwater, providing the sea lions with a spacious and realistic aquatic habitat. What sets this exhibit apart is the inclusion of a groundbreaking feature: a 35-foot-long walk-through underwater tunnel that offers visitors an up-close and personal view into the sea lions’ habitat. This innovative design element made the Sea Lion Sound exhibit the first of its kind in North America.  See Photo Gallery

Underwater aquarium tunnel with swimming seal