Theater of the Sea is a historic marine wildlife park in Islamorada, Florida, set amid the natural lagoons of the Florida Keys at Mile Marker 84.5. Established in 1946, it is one of the oldest marine parks in the world and features dolphins, sea lions, sea turtles, sharks, stingrays, alligators, and parrots in lush, natural settings. Guests enjoy included shows and can opt into a range of interactive experiences, from stingray encounters to in-water dolphin swims with dorsal tows and underwater adventure options. The facility is accredited by the Alliance of Marine Mammal Parks and Attractions and is committed to animal rescue, rehabilitation, and marine conservation education. Open year-round with free parking and a dog-friendly policy, Theater of the Sea is a beloved Keys attraction for families and marine life enthusiasts alike.