Biscayne National Park

Biscayne protects the northernmost living coral reefs in the continental United States, the northern segment of the Florida Reef Tract, per NPS. Elkhorn coral (Acropora palmata) is one of the reef-building species here. The reef is the reason the park is mostly water, and it is reachable only by boat: snorkel and SCUBA trips run from Convoy Point through the park concessioner. The 2023 marine heatwave bleached much of the Florida Reef Tract, so check the current condition before promising a healthy-reef day, and expect trips to cancel for chop or poor water clarity.

A shallow estuarine lagoon between the mainland mangrove coast and the barrier keys, and the nursery water for juvenile reef fish. It holds West Indian manatee, bottlenose dolphin, sea turtles, and the federally threatened American crocodile along its mangrove edge, per NPS. The seagrass beds have suffered repeated die-offs since about 2010, a chronic local water-quality story. Calm enough for kayaking near Convoy Point on a settled day. Swimming with manatees is federally prohibited; if one comes near in the water, hold still.

Described by the base dossier as the longest undeveloped mangrove coast on Florida's east coast. Red, black, and white mangroves wall the mainland edge, and the root tangle is the nursery that feeds the bay and the reef. The mangrove coast and the keys carry Glades culture and Tequesta shell middens; NPS traces human use here across roughly 10,000 years, with the Glades culture emerging about 2,500 years ago and developing into the Tequesta. It is visible from the Convoy Point shoreline and the visitor-center boardwalk without a boat. Mosquitoes ashore are real; December to April is the manageable window.

A small island in the upper bay with a 65-foot ornamental lighthouse built in the 1930s by the industrialist Mark Honeywell. The lighthouse was never lit as a navigational aid and sits on the National Register of Historic Places, per NPS. A short loop trail, a harbor, a picnic area, and primitive camping round out the island, and the harbor looks back across the bay toward the Miami skyline. Reached by boat only. There is no fresh water, no shade, and no electricity; pack everything in and out. Climbing the lighthouse depends on a ranger being present.

The federally threatened American crocodile (Crocodylus acutus) uses Biscayne's mangrove shoreline and the warm-water canals nearby, per NPS. Crocodiles and the more familiar American alligator both range across South Florida, which makes this one of the few corners of the country where the two can turn up in the same region. This is a point-it-out-to-the-kids sighting rather than a place you walk to, and it pairs with a slow boat or kayak along the mangrove edge. Give any croc a wide berth and watch from the boat.

A cluster of wooden houses built on stilts in the shallow bay flats starting in the 1930s. The site peaked at 27 structures in 1960; seven remained standing after Hurricane Andrew in 1992. The houses sit within the northern end of the park, on a Biscayne Bay sandbar closer to Miami than to Convoy Point, per NPS. Most bay tours point them out, and they draw a reliable "what is that?" from a kid on the water. Not landable without a permit.

Primitive island camping reached by boat only, on the largest island in the park. Restrooms with sinks and cold-water showers sit at the harbor, and drinking water is available though NPS advises bringing your own in case the system goes down, per NPS. Sites are first-come, first-served; no advance reservations, with the camping fee paid on-site. There is no in-park hotel or lodge at Biscayne; families who do not camp base in Homestead or Florida City and day-trip to Convoy Point. Boca Chita Key is the second island camp, grassier but with no showers, sinks, or drinking water. Best December to April for milder temperatures and fewer mosquitoes; bring everything and pack it out.

Convoy Point is the only mainland access point and the one place a boat-less family gets a real look at the bay: a free visitor center with marine exhibits, a short boardwalk over Biscayne Bay, a jetty, and a picnic area, per NPS. Tarpon and manatee are possible off the jetty. There is no scenic drive through the park, so arriving expecting an overlook road will disappoint. It is the realistic one-to-two-hour stop for a family without a boat. Address: 9700 SW 328th Street, Homestead.

The shoreline and jetty at Convoy Point are the no-boat, no-fee, kid-safe way to watch for West Indian manatee and tarpon in the channel. The image here is a USFWS public-domain photograph of the species families look for, not a specific Convoy Point individual. Federal law prohibits swimming with or pursuing manatees; watch from the jetty and keep still if one drifts close. Pairs naturally with a half-hour at the visitor-center exhibits next door.

The one substantial land hike in the park, and a history lesson underfoot. NPS describes a trail running approximately six miles down the center of Elliott Key along the scar of the "Spite Highway," the six-lane, seven-mile swath Islandia landowners bulldozed in the early 1960s to try to spike federal protection, per NPS. A separate mile-long loop trail starts near the campground. It is flat and out-and-back, with tropical-hardwood hammock shade in places. The catch: you have to boat to the island to walk it.

There is no in-park dining at Biscayne and no food or fresh water on the islands, so all eating happens in Homestead and Florida City. Robert Is Here is the best-known family stop on the road between Biscayne and the Everglades' Homestead entrance: an open-air tropical-fruit stand and milkshake counter (mango, key lime, guanabana) with a small animal yard for kids, operating since 1959. The image here is a Biscayne Bay substitute; the stand has no Commons photo. Address: 19200 SW 344th Street, Homestead; walk-up, seasonal hours.

For kids who can swim, this is the way a boat-less family reaches the reef. The Biscayne National Park Institute runs half-day guided boat-and-snorkel trips with gear from Convoy Point. Trips cancel for chop or poor visibility, so book the dry season (December to April) and build in a spare day. Minimum age varies by trip: the reef-and-shipwreck Snorkel Experience is ages 8 and up, the shared Snorkel and Paddle eco-adventure is 12 and up, and the introductory bay snorkel takes all ages; confirm the trip you book. Reserve direct with the Institute.

The only underwater archaeological trail in the National Park System: six shipwrecks marked with mooring buoys, plus Fowey Rocks Lighthouse (1878), per NPS. The Mandalay (1966) sits shallow and suits snorkelers; the Arratoon Apcar (1878), Erl King (1891), Alicia (1905), Lugano (1913), and a 19th-century wooden sailing vessel round out the trail, with the deeper wrecks needing SCUBA. Access to every site is by boat only. Mooring buoys are first-come and free, but you need a boat, or book through the park concessioner.