Photo: DanTD, CC BY-SA 3.0Clear freshwater holds steady at about 72 F all year, with turtles and fish drifting over white sand. At Devil's Den, a sunbeam drops into a Florida limestone cavern. That is spring snorkeling in Florida.
Florida's springs are a freshwater world of their own. They hold a steady temperature of about 72 F all year, according to Devil's Den, Ginnie Springs and the Forest Service for Alexander Springs. That feels cold in summer, and it is a welcome option when the ocean is rough.
Getting in varies a lot. Devil's Den in Williston requires a timed snorkel reservation. Ginnie Springs is a private park with one day pass covering seven springs. Rainbow Springs, Blue Spring, Weeki Wachee and Ichetucknee are state parks, and Alexander Springs is run by the Forest Service. Blue Spring closes to swimming in winter because it is a manatee refuge. For a manatee swim, see Crystal River at /snorkeling/florida/crystal-river/.
Caves and caverns are dangerous. Stay in open water and out of any overhead space unless you hold cave certification. Protect the springs too: avoid sunscreen in the water where it is banned, and stay off aquatic vegetation.
Tap a spot to see what it is like, then open its guide or get directions.
Tap a card for spotting tips and the Guardian rule for each animal. Filter by what you most want to meet.
Florida's springs push clear groundwater up through limestone vents, so the sand around the boil dances and the water stays about 72 F all year. Visibility over the vent can exceed 100 ft.
Guardian rule: Stay off the vent's sand and limestone edges, and never enter a cave or cavern without cave diving certification.
Slow, gentle grazers that crowd into warm, spring-fed rivers like Crystal River when the Gulf cools in winter. Adults weigh 800 to 1,200 lb.
Guardian rule: Passive observation only: float, do not touch, chase, feed or surround a manatee, and stay out of posted sanctuary areas.
Trichechus manatus latirostris
A long, spotted fish with a narrow snout that hovers motionless near the surface in Florida springs and rivers. An ancient lineage that can gulp air.
Guardian rule: Watch and let it be. No fishing in most spring swimming areas.
Lepisosteus platyrhincus
Cooters, musk turtles and softshells bask on logs and graze in spring runs. Clear spring water makes them easy to watch underwater.
Guardian rule: Do not touch or pick up turtles.
Pseudemys, Sternotherus, Apalone
Long ribbons of tape grass sway in spring runs like Rainbow River and Ichetucknee. They shelter fish and feed manatees, and they are easily damaged.
Guardian rule: Float over the grass, never stand or walk on it.
Vallisneria americana
Sunlight pours through a skylight into a 72 F spring inside a dry limestone cavern. Snorkeling is by timed reservation only.
Snorkeling is $30 per person for a 90-minute session including the day pass; a $5 non-refundable deposit per person holds the reservation and $25 is due on arrival. Gear bundle rental is $15. Children under 6 cannot enter the Den. Directions
Seven springs on the Santa Fe River, all a steady 72 F, with one day pass that covers every spring.
Day pass is $25 for adults from March to October and $20 from November to February; ages 4 to 12 are $6 or $5; ages 3 and under are free. Passes stop being sold at 3 PM. Directions
A state park headspring with a buoyed swim area, plus a long spring-fed river flowing downstream.
Search results list $5 per vehicle (2 to 8 people), $4 for a single occupant and $2 for pedestrians, and say a day-use reservation is now required at the headsprings entrance. Not verified against the state page. Directions
A winter refuge for manatees on the St. Johns River. Swimming and diving are closed in the spring run from mid-November to at least mid-March.
State park fees apply per the St. Johns River Water Management District. Search results list $6 per vehicle and $2 per pedestrian; not verified. Directions
Buccaneer Bay, the swimming area at the head of the Weeki Wachee River, comes bundled with the park entrance.
Search results list $13 adults, $8 ages 6 to 12, free ages 5 and under, which includes Buccaneer Bay. Not verified. Directions
A Forest Service spring where you can swim, snorkel and dive year-round in a constant 72 F.
The Forest Service page lists an $80 plus tax Springs Hopper Pass (valid through the end of the year, covers five areas) sold by the concessionaire Naventure. A per-person day fee was not listed there; check the concessionaire. Directions
A spring-fed river park. The North Entrance springs, Blue Hole and Ichetucknee Spring, are the main snorkel areas.
Search results list $6 per vehicle (2 to 8 people), $4 single occupant, $2 pedestrian. Not verified. Directions
Shore entries with easy parking and calm water on a normal day. Still check the surf and ask the lifeguard.
Seven springs on the Santa Fe River, all a steady 72 F, with one day pass that covers every spring.
A Forest Service spring where you can swim, snorkel and dive year-round in a constant 72 F.
Calm Choppy Rough. Wave heights are offshore model values.
Forecast: Open-Meteo. Model data, not a lifeguard report. Always check posted warnings.
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Spring water stays near 72 F all year, so snorkeling works in any month, but air temperature matters. Summer is warmest for getting out of the water and busiest; weekends can reach capacity. Blue Spring is closed to swimming from mid-November to at least mid-March.
Arrive early, as popular springs reach capacity on hot weekends and Devil's Den runs timed 90-minute sessions.
Holiday weekends when parks cap entry, and winter at Blue Spring.
| Row | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snorkel conditions | Good | Good | Good | Best | Best | Best | Best | Best | Best | Best | Good | Good |
| Florida manatee | Fair | Fair | Avoid | Avoid | Avoid | Avoid | Avoid | Avoid | Avoid | Avoid | Fair | Fair |
| Water °F | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
Blue Spring State Park is a designated manatee refuge, and the St. Johns River Water Management District says the spring and run are closed to all water activity from mid-November to at least mid-March; swimming with manatees there is not allowed and strictly enforced. For a legal manatee swim, see Crystal River at /snorkeling/florida/crystal-river/.
Verified prices: Devil's Den snorkeling is $30 per person for a 90-minute session, with a $5 non-refundable deposit. Ginnie Springs is $25 for adults March to October and $20 November to February. Alexander Springs is on a Forest Service Springs Hopper Pass at $80 plus tax, and needs a vehicle reservation on summer weekends and holidays. State park fees were not verified.
Blue Spring closes to swimming in winter, and Alexander Springs has a vehicle access reservation on weekends and holidays from Memorial Day through Labor Day. Check each park's status the day you go.
Springs are fragile and some are tightly regulated.
Cave and cavern systems here are for certified cave divers only. Snorkelers must stay in open water in daylight and never enter overhead spaces. Ginnie Springs requires divers to sign in first, and Alexander Springs limits scuba to certified divers.
Devil's Den does not allow sunscreen because some chemical sunscreens harm marine life. Check each park's rules before you go and wear a rash guard instead. Official rule
Do not stand on or kick aquatic plants. Stay off the bottom vegetation, keep fins up and do not touch wildlife. Ginnie Springs bans fishing in the springs and run, and diving or jumping from decks, banks or trees. Official rule
Mask, snorkel and fins are required, flotation devices are not allowed unless medically necessary, and children under 6 cannot enter. Minors under 18 need a parent on site or a notarized consent form. Official rule
How snorkelers protect reefs · Choosing a reef-safe sunscreen
Devil's Den, Ginnie Springs and Alexander Springs list a constant 72 F year round. That is cool, so a wetsuit or rash guard helps.
Yes, the day pass covers all seven springs ($25 adults March to October, $20 November to February). Cave diving is for certified divers only.
Yes. The site says reservations are required to snorkel in the Den, with a $5 non-refundable deposit per person.
Not at Blue Spring, which is closed to swimming mid-November to at least mid-March. See Crystal River for manatee swims.
What we pack for every snorkel trip. Each link searches the category on Amazon so you can compare brands and prices.
Non-nano zinc oxide only. No oxybenzone or octinoxate, which Hawaii bans.
Shop on Amazon →The best sun protection is fabric. Less sunscreen in the water, less sunburn on your back.
Shop on Amazon →A low-volume mask that fits beats any rental. Short travel fins pack easily.
Shop on Amazon →An inflatable vest lets you rest without standing on the reef. Lifeguards love them.
Shop on Amazon →As an Amazon Associate we earn from qualifying purchases. Disclosure.
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We check fees, rules and access against official sources first, then local operators and recent visitor reports. Conditions change, so always follow posted signs and lifeguards. Spotted something out of date? Tell us.
