Photo: Thomas Spiegelhalter, CC BY-SA 4.0Most of Biscayne National Park lies underwater, and the best of it is a day trip from the mainland. Join a ranger or Institute boat and you can snorkel a shallow shipwreck, a living reef and the base of Fowey Rocks Lighthouse in one outing.
Look down and you are over the northern end of the Florida reef tract, protected here along with mangrove shoreline and a string of keys. The draws for snorkelers are the Maritime Heritage Trail, the patch and outer reefs, and Boca Chita Key as an island stop. Reported counts run past 500 species of reef fish, along with hard and soft corals, sea fans and sponges.
A string of historic shipwrecks. Of these, the Mandalay (sank 1966) is the one most often described as shallow enough for snorkelers. Erl King, Alicia and Lugano are deeper and aimed at certified divers. The trail is also a place to ask your operator which site is running that day.
An 1878 lighthouse standing on the reef edge. The structure is closed to the public, but the water around its base is a popular snorkel stop on trips that run out to the outer reef.
Scattered coral heads with sea fans, sponges and schooling fish. Operators pick the day's reef based on wind and visibility, so you may not be told the site in advance.
A small island with a decorative lighthouse, a harbor and picnic space. On the Institute's Boca Chita heritage cruise from Coconut Grove you can step ashore for about an hour, and in summer that trip may include introductory snorkeling.
Sheltered mangrove shoreline where juvenile fish gather. Some Institute snorkel and paddle trips use it as a calm-water option when the outer reef is too rough.
Sunken ships and historic wrecks that now work as artificial reefs, covered in coral and full of fish.
Guardian rule: Look, do not take. Historic wrecks in sanctuaries and parks are protected by law.
Colorful grazers with fused, beak-like teeth. You can hear them crunch on coral rock, and much of the white sand on tropical beaches passes through them.
Scaridae
A deep blue surgeonfish that grazes Florida reefs in roving schools. Juveniles are bright yellow and change to blue as they grow.
Acanthurus coeruleus
Yellow fish with blue or bronze stripes that hang in big, slow schools under ledges and around coral heads on Florida reefs.
Haemulon
Purple, lacy soft corals that sway in the current on Florida and Caribbean reefs. They face across the current to filter food from the water.
Gorgonia
A long, silver predator that hangs motionless near the surface and watches snorkelers with curiosity. It looks fierce but rarely bothers people.
Guardian rule: Take off shiny jewelry, which can look like a fish flash.
Sphyraena barracuda
Live sea temperature, waves and wind for the next 7 days, with our snorkel rating for each day.
Calm Choppy Rough. Wave heights are offshore model values.
Loading tides…
Forecast: Open-Meteo. Tides: NOAA station 8723214. Model data, not a lifeguard report. Always check posted warnings.
Hand-picked tours that run here, ranked for small groups, a proper reef briefing and respect for wildlife.
by Biscayne National Park Institute
Reef, mangrove or shipwreck sites, chosen for the day's conditions. Private trips are available.
Run by the park's official partner, and the money supports park education and stewardship.
by Biscayne National Park Institute
Shipwrecks, patch reefs or mangroves, depending on the day.
Official park partner with a city departure, handy if you are staying in Miami without a car.
by Biscayne National Park Institute
A longer day combining snorkeling with time on a Biscayne island.
Longer trip with more time in the water and ashore, run by the park's official partner.
by Biscayne National Park Institute
Gear, guidance and flotation support for first-timers. Summer program.
Built for nervous beginners, with flotation provided.
by Biscayne National Park Institute
Snorkel while removing marine debris. New dates are announced periodically.
A conservation trip where you help clean the reef.
We may earn a commission when you book through these links, at no extra cost to you. It never changes which tours we pick. How we choose tours.
Conditions are usually best from about November through April, when winds are lighter and the water clearer. The 2023 marine heat wave caused widespread bleaching, so coral cover is patchier than older photos suggest. June to November is hurricane season and storms can close waters.
The morning trip, before the afternoon sea breeze builds.
Operators plan around wind and current more than tide. Ask about drift and where the boat will anchor.
Windy days, and the days after a front or heavy rain when visibility falls.
| Row | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snorkel conditions | Good | Best | Best | Best | Good | Fair | Fair | Fair | Fair | Fair | Good | Good |
| Water °F | 72 | 73 | 75 | 78 | 81 | 84 | 86 | 87 | 86 | 83 | 78 | 74 |
The reefs and wrecks are several miles offshore, with no shore access, so you need a boat. Unless you have your own vessel and know the park's mooring buoys and channels, book a guided trip. Snorkeling is allowed without a permit, but conditions, current and boat traffic reward a guide who knows the day's best site.
Swim level: Comfortable swimmer
Most snorkel trips leave from the Dante Fascell Visitor Center at Convoy Point, 9700 SW 328th Street, Homestead, about 35 miles south of downtown Miami. The Institute also runs trips from Dinner Key Marina in Coconut Grove.
Free lot at the visitor center, right before the Homestead Bayfront Marina entrance. The park notes that parking or transportation fees may apply but gives no details, so confirm before you go.
You board the boat from the jetty at the visitor center. There is no shore entry to the reef.
About 30 to 60 minutes each way. Boats leave from Dante Fascell Visitor Center, Convoy Point, Dinner Key Marina, Coconut Grove.
No park entrance fee. Guided trips are priced by the operator, and day docking at Boca Chita or Elliott Key is $25 on Fridays to Mondays and federal holidays.
Official fees and hoursChecked 2026-10-22. Fees change, so confirm before you go.
The Maritime Heritage Trail is the park's string of historic shipwrecks, with the 1966 Mandalay the shallow one snorkelers usually get. The Erl King (1891), Alicia (1905) and Lugano (1913) sit deeper and are mostly for certified scuba divers. Rangers have run Heritage Trail snorkel trips on select Saturdays in the past, but no current price or schedule was confirmed, so call the Institute on 786-335-3644 before planning around one.
Boca Chita is an island stop rather than a snorkel site. The Institute's Boca Chita Key Heritage Cruise from Coconut Grove was listed at about $83 for roughly four hours, with time ashore, and in summer may include a short introductory snorkel. If you arrive in your own boat, day docking costs $25 on Fridays to Mondays and federal holidays, and overnight camping with docking is $60 per night.
Biscayne is a national park and a no-take zone, so the rules are simple and enforced.
The park has no entrance fee, but guided trips, charters, camping and docking are priced separately. Official rule
Do not collect shells, coral, fish or artifacts, including from shipwrecks. Leave everything where it is.
Never anchor on coral. Use the buoys provided or anchor on sand only.
Jet skis are prohibited in the park.
Keep a safe distance from turtles, manatees and other protected species. Pack out all trash.
If you snorkel from your own boat, display the required dive flag and stay close to it. Florida law sets the specific flag and distance rules, so check them before you go.
How snorkelers protect reefs · Choosing a reef-safe sunscreen
These local groups restore coral, rescue wildlife and keep the water clean. Volunteer a morning, donate, or just follow their work.
Education and eco-tours in Biscayne National Park
The park's official concessioner and nonprofit partner runs the snorkel, paddle and cruise trips in the park, and lists a snorkeling debris cleanup program among its offerings. Booking with them supports the park's education work.
Visit biscaynenationalparkinstitute.org →
No. The park has no entrance fee and no snorkel permit. You pay for a guided trip, charter, or docking if you arrive in your own boat.
No. The reefs and shipwrecks are offshore, so you need a boat, usually from the Dante Fascell Visitor Center at Convoy Point or from Coconut Grove.
The Mandalay (sank 1966) is the Maritime Heritage Trail wreck most often described as shallow enough for snorkelers. The others are deeper, so ask your operator which site they are running.
It varies. Clear, calm days are most common from about November to April. After wind, a front or heavy rain, the water can be milky, so check with the operator the morning of your trip.
Jet skis are prohibited in the park, and boaters should use mooring buoys or anchor on sand, never on coral.
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.
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.
