Swimming

Rock Springs is the closest thing Florida has to a natural lazy river. The spring emerges from a rock bluff and the run is shallow, clear and just fast enough to carry a tube without any paddling, taking around twenty minutes end to end before you walk the bank back to the top. Small children can stand up along almost all of it. The catch is access: this is an Orange County park with a hard capacity limit, the queue of cars starts before opening on summer weekends, and once it fills nobody else gets in that day. Tube rental is from vendors outside the gate.

Lindquist is the beach St. Thomas residents recommend when you ask where they go. It is a protected territorial park, which means a small entry fee, a gate, and consequently far fewer people than the free beaches. The sand is soft, the water is shallow and clear with almost no wave action, and there is snorkelling around the rocks at the eastern end. The view runs across Smith Bay to St. John and the British Virgin Islands beyond. Facilities are basic - restrooms and picnic shelters, no concession - so bring food and water. It closes on some days of the week.

Lithia Springs is the closest real spring to Tampa and it is set up for families rather than divers: the swimming area is enclosed, shallow at the edges, sandy underfoot and shaded around the rim, so it works well with children who are not strong swimmers. The water holds 72 degrees. It is a Hillsborough County park, so entry is cheap, and there is a decent campground on the Alafia River alongside. The pool closes periodically for water quality after heavy rain, and it hits capacity on summer weekends, so call before making the drive.

Magens Bay is a deep horseshoe with headlands on both sides, which blocks the swell almost entirely and leaves a mile of flat, warm, shallow water. For toddlers and nervous swimmers there is nothing better in the territory. The trade-off is that a sheltered sandy bay is not a snorkelling bay - there is little to see underwater compared with Coki or Maho. Facilities are full: restrooms, showers, a snack bar, chair and kayak rental, and shade under the sea grape trees. It is a major cruise excursion, so port days transform it; check the schedule.

Maho is the turtle beach. Seagrass beds start almost immediately offshore and green turtles feed on them daily, often within twenty or thirty feet of the sand in water barely deep enough to swim. Spotted eagle rays cruise through regularly too. Because the bay is protected and the water is flat and shallow, this is the most accessible wildlife snorkel in the territory - a cautious child in a mask can see turtles without ever being out of their depth. The road runs right along the beach so access is trivial. Keep the required distance from turtles and never chase or touch them.

Manatee Springs sits where a big spring meets the Suwannee, and the boardwalk that follows the run to the river passes through genuine cypress swamp - knees, dark water, and enough shade that it stays comfortable in August. Manatees come up the run in winter when the Suwannee turns cold, and the same seasonal trade applies as at Blue Spring: their presence closes the swimming. Outside manatee season the basin is open, clear and popular with divers heading into the cave system below. Campgrounds sit under the oaks nearby.

Buyé is small, sheltered and shallow, with coconut palms growing close enough to the sand to give real shade, which is rarer than it should be. The water is clear and stays waist-deep a long way out with very little wave action, so it is a genuinely relaxing beach with toddlers. Local families use it heavily at weekends and there is a modest food kiosk scene; midweek it can be almost empty. Facilities are limited. It pairs naturally with Playa Sucia and the Cabo Rojo salt flats for a day on the south-west corner of the island.

Playa Sucia sits at the very corner of Puerto Rico, a crescent of pale sand enclosed by cliffs, with water that is usually calm and remarkably clear. The name means dirty beach and refers to seaweed that drifts in on some winds, not to the water. Above it a short uphill walk on exposed limestone leads to the Los Morrillos lighthouse and cliff edges that drop straight to the sea - spectacular, and completely unfenced, so young children need holding. Nearby are the pink salt flats of the Cabo Rojo salinas and a birding boardwalk. Bring everything; there are no facilities.

Rainbow Springs pushes out hundreds of millions of gallons a day into a swimming area that is unusually forgiving for small children: a gradual sandy entry, roped shallows, and clear water that rarely drops below 72 degrees. The old garden paths above the spring lead past man-made waterfalls built when this was a private roadside attraction. Tube and kayak rentals run from a separate entrance downriver, and the paddle up the Rainbow River is calm enough for a first-time family trip. Weekends fill by late morning in summer.

Red Reef put limestone boulders in shallow water close to shore, and the result is a reef you can swim to in under a minute with fish life that punches well above the depth - angelfish, parrotfish, snapper and often a green sea turtle grazing. Because it is only a few feet deep it suits swimmers who are competent but not strong, and you can stand between looks. There are two reef sections, north and south of the lifeguard stands. The Gumbo Limbo Nature Center is across the road and runs a sea turtle rehabilitation facility worth pairing with the swim.

Sapphire combines things that usually do not come together: a genuinely good reef within easy swimming distance at Pettyklip Point, and a broad shallow sandy stretch in the middle where small children can play safely. The snorkelling holds turtles, rays and reef fish. Trade winds funnel through here, which is why windsurfers and kiteboarders use it and why afternoons get choppy - mornings are noticeably calmer. There is a beach bar, watersports rentals and a marina alongside. Public access is via the resort, which is legal and normal in the USVI, where all beaches are public.

The inlet concentrates fish moving between the Indian River Lagoon and the Atlantic, which makes the north jetty the busiest and most productive shore fishing platform in the state - snook, redfish, tarpon and Spanish mackerel all run through here. It is a real walkway with railings rather than a scramble, so children can fish it safely. On the lagoon side there is a protected shallow beach for swimming. The north side has the best surf break on the Florida east coast. Two small museums sit within the park - the McLarty Treasure Museum on the 1715 Spanish fleet wrecked off this coast, and the Sebastian Fishing Museum. A bait and tackle shop opens daily except Wednesdays. Note that bridge construction on the highway began in 2026 and can affect the campground entrance and reservations, so confirm before booking a site.

Siesta Key’s sand is almost pure quartz rather than crushed shell, which makes it startlingly white and - the part that matters with children - cool enough to walk on barefoot at midday in summer when every other beach is unbearable. The Gulf here shelves very gradually and is usually flat, so small kids can wade a long way safely. The main public beach has a large free lot, lifeguards, a playground, concessions and shaded pavilions. The lot fills by mid-morning in season and the overflow parking is a walk.

Sombrero is the middle Keys’ family beach and it is free, which in this stretch of Florida is worth saying twice. The sand is soft, the water stays shallow a long way out, and unlike most Keys beaches there are mature palms giving genuine shade over the picnic tables. There is a playground, clean restrooms and a volleyball court. Loggerhead turtles nest along here in summer, and marked nests appear on the sand. It is a good midpoint stop breaking up the drive between Key Largo and Key West.

The rock jetties at St. Andrews create a protected pool on the Gulf side where the water stays flat when the open beach is rough, and it holds fish - sheepshead, spadefish, small rays - close enough in that a child in a mask can see them standing chest-deep. That combination is uncommon on the Panhandle, where most beaches are beautiful but empty of anything to look at underwater. There is a second calmer beach on the lagoon side for younger kids, plus a campground, and a shuttle runs across to undeveloped Shell Island in season.

The eastern end of St. George Island is state park, which means nine miles of dune and beach with no buildings at all. Walk ten minutes from the parking area and you will have sand to yourself even in July, which is the opposite of most Florida beaches in summer. The Gulf side has gentle surf; the bay side is flat and warm and better for toddlers. Shelling is very good, particularly after a storm. Facilities are limited to a few pavilions and restrooms, and the nearest shop is back across the bridge, so this is a pack-everything destination.

Sun Bay is a public balneario, which means facilities - restrooms, showers, shelters, a large parking area - attached to a beach that on most days is close to empty. The bay is broad and shallow with very little wave action, so it suits small children, and the sand runs for over a mile so you can always walk away from whoever else is there. Vieques’s free-roaming horses graze the grass behind the beach and wander onto the sand, which is one of those things children do not forget. Camping is permitted with a permit. It is the easiest beach on the island to reach with a hire car.

Trunk Bay is the beach that appears on every US Virgin Islands poster, and unusually it earns it. The underwater trail is the reason to bring children: a marked route over the reef with plaques anchored to the seabed naming the corals and fish as you pass, in water shallow and calm enough that a competent young swimmer can follow it without stress. Facilities are unusually good for the national park - showers, restrooms, snorkel rental, a snack bar. It is the busiest beach on St. John, so cruise ship days are worth avoiding entirely; check the Charlotte Amalie schedule before choosing your day.

Weeki Wachee is a genuine piece of old Florida that never stopped operating: performers breathe from hidden air hoses in a theatre built into the side of the spring, and the show has run since 1947. Around it the park has added Buccaneer Bay, a small water park fed directly by the spring, which is the coldest and clearest water park water your kids will ever complain about. The paddling run downriver is separate, launches on a strict timed permit system, and books out well ahead in summer. Capacity closes the park entirely on busy days, sometimes before 10am.

Wekiwa is the closest real spring to Orlando, which is both its appeal and its problem - it regularly hits capacity and closes the gate by mid-morning on summer weekends. The swimming basin is large, has a shallow shelf for small children and a deeper end with a dock, and the water sits at 72 degrees. Canoe and kayak rentals launch onto the Wekiva River, a slow blackwater run where alligators and otters are both common sights. It makes a genuine alternative to a theme park day for families already in Orlando.