Casey Key, Florida is a narrow barrier island off the Sarasota coast, celebrated for its unspoiled beaches, canopied roads, and unhurried Gulf-side atmosphere.
Casey Key sits just south of Osprey in Sarasota County, stretching roughly eight miles along Florida's southwest Gulf Coast. Unlike the heavily developed barrier islands nearby, Casey Key has remained largely residential and low-key, its character shaped by longtime property owners who have resisted commercial development for generations. The result is an island that feels genuinely preserved, with an atmosphere closer to old Florida than to a modern beach resort.
The Gulf-facing shore offers some of the region's finest shelling and wading, with gentle surf and soft sand that extends well into the water. Anglers favor the bay side for snook, redfish, and trout, and those who prefer kayaking will find the mangrove-lined channels of Little Sarasota Bay rewarding in any season. The island also sits along a productive stretch of coast for dolphin sightings, particularly in the early morning hours.
Nearby Turtle Beach to the north offers public access, restrooms, and boat ramp facilities that complement a day spent exploring the broader area. The surrounding Sarasota region adds cultural depth, with world-class arts, dining, and natural preserves all within easy reach.
Casey Key earns its reputation as a place apart, an island where the pace slows, the landscape holds, and the Gulf remains the main attraction.
Visit during the week in early morning to have the Gulf-side beach almost entirely to yourself, as weekend crowds pick up noticeably by midday.
Bring a kayak or paddleboard to explore the calm, mangrove-lined waters of Little Sarasota Bay on the island's eastern shore.
Pack your own food and water, as Casey Key has no commercial strip or convenience stores, keeping the island refreshingly quiet but requiring some planning.
Watch for loggerhead sea turtle nesting activity along the beach from May through October, and keep the shoreline dark at night to protect hatchlings.
Drive the full length of Casey Key Road to take in the canopy of mature oaks and the glimpses of grand historic estates tucked behind the tree line.
Customize a 4-hour private cruise with snorkeling, paddleboarding, dolphin watching, and more.
Paddle a 100% clear kayak to mangroves and a secluded beach near Sarasota
Fly a private helicopter tour from Sarasota for up to 3 passengers