Theater of the Sea

Theater of the Sea opened in the 1940s on Windley Key and is among the oldest marine-life attractions of its kind. The lagoon at its heart began as a rock quarry dug to supply stone for Henry Flagler's Overseas Railroad, and when the quarry flooded, the pit became a natural saltwater habitat. Today the park keeps sea lions, dolphins, stingrays, sharks, sea turtles, tropical fish and parrots in a mix of lagoons, touch tanks and walkways, and it offers a schedule of narrated shows and talks throughout the day. It is a family-oriented, old-style attraction rather than a high-tech theme park, and part of its appeal is the gentle pace and the setting among palms, coral rock and quarry walls.

A general admission day includes shows, wandering the grounds and a ride on the Bottomless Boat, a glass-bottom vessel that crosses the lagoon and lets you see fish and rays from above. Guides and trainers explain the animals' behavior and conservation needs, and children can touch rays, feed fish or watch sea lion demonstrations from close range. Extra-cost programs let guests swim with dolphins, sea lions or stingrays, and some include shallow-water interactions rather than deep swims.

These programs have age, size and swim-ability requirements, limited slots and set schedules, so reserve as early as you can and read the rules before you commit.Visitors should come with realistic expectations. This is a compact park that can be seen in three to four hours, longer if you add a program, and some areas are older and more modest than modern aquariums.

Bring a hat, sunscreen, a towel and a change of clothes if you plan to join a swim program. Summer afternoons bring thunderstorms, so arrive early, and winter mornings can feel cool for swimming. A visit pairs well with the History of Diving Museum a few minutes north, the Windley Key Fossil Reef State Park next door and lunch at one of Islamorada's waterfront restaurants.

Check hours and program availability directly with the park, since schedules change with the seasons.Photography is straightforward, with good light on the lagoon in the morning and softer shade later in the day. Strollers and wheelchairs can use most paths, though some surfaces are uneven, and the park has a gift shop and snack stand.

For families, a morning here followed by an afternoon on the water makes a balanced day in the middle Keys.Timing the visit around the show schedule is the best way to avoid wasted waiting. Ask at the gate for the day's program times, then plan your route through the lagoons so you reach the sea lion demonstration and the Bottomless Boat when they begin.

Lines for photographs with animals form quickly in the middle of the day, so go straight to the touch tanks first if your children are eager. Lockers or bags can be useful if you plan a swim program, and sandals that you can take off easily save time at the changing area. Expect a mix of shade and full sun, and drink water regularly.