Spring at Shell Key Preserve is a magical window where the waters of the Gulf and Tampa Bay truly come alive. As the mercury rises and the days lengthen, the preserve becomes a bustling corridor for some of Florida’s most iconic marine residents. Whether you are kayaking through the mangroves or walking the pristine white sands, here is your guide to what’s swimming nearby this season.
1. Bottlenose Dolphins: The Year-Round Residents
While dolphins are local residents, spring is a particularly active time. You’ll often see them in the deeper channels surrounding the island or “surfing” in the wakes of passing boats.
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What to look for: Keep an eye out for a rhythmic “roll” of a dorsal fin. In spring, you might even spot smaller calves swimming tightly alongside their mothers in the calm shallows.
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Pro Tip: If you see them feeding, they may be corralling fish against the shoreline. Observe from a distance to let them hunt in peace
2. Manatees: The Gentle Giants Return
As the Gulf water temperatures climb above 72°F (22°C), manatees begin to migrate out of their winter warm-water refuges (like power plants and springs) and into the seagrass beds around Shell Key.
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What to look for: Look for a “manatee footprint”—a smooth, circular swirl on the water’s surface caused by their tail as they swim. You might also hear a sudden whoosh as they surface to breathe.
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Safety Reminder: Manatees are slow-moving and protected. Always maintain a “no-wake” speed in shallow areas and never attempt to feed or touch them
3. Sea Turtles: The Early Birds of Nesting Season
While the peak of nesting season is summer, the first leatherback and loggerhead turtles often begin scouting the Pinellas County shoreline in late April.
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What to look for: You likely won’t see them on the beach during the day, but snorkelers may spot them foraging in the seagrass or near the jetties.
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Responsibility: If you happen to see a turtle on the beach at night, keep your distance and turn off all lights. Artificial light can disorient nesting mothers and hatchlings.
Wildlife Viewing Etiquette
To keep Shell Key a sanctuary, please follow the 50/100 Rule:
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50 Yards: The minimum distance to keep from sea turtles and dolphins.
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100 Yards: The recommended distance for larger groups of animals or if you are in a motorized vessel.
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Pack it out: Spring is also shorebird nesting season. Please stay out of the “Closed Area” signs mid-island to protect vulnerable chicks.
