High Quality Content by WIKIPEDIA articles! The Dolphin Research Center is a dolphinarium on Grassy Key, Florida. The 90,000-square-foot (8,400 m2) series of saltwater lagoons carved out of the shoreline is home to a family of bottlenose dolphins and California sea lions. It features experiences where visitors can learn about marine mammals and the environment and also swim with, hand-signal, or enjoy other interactive programs with the dolphins.