Overseas Highway

Day 1 · ~4.8 mi (7.8 km)

1. 

   1

   Dagny Johnson Key Largo Hammock Botanical State Park

   north Key Largo; one of the largest tropical hardwood hammocks in the US

   Morning · 60 min · $

   Walk the trail through one of the largest West Indian tropical hardwood hammocks in the United States.

2. 

   2

   John Pennekamp Coral Reef State Park

   Key Largo; first undersea park in the US, reef seen by snorkel or glass-bottom boat

   Morning · 180 min

   See the coral reef from a glass-bottom boat, or snorkel or dive over it.

Day 2 · ~3.7 mi (5.9 km)

1. 

   1

   Windley Key Fossil Reef Geological State Park

   Islamorada; old railroad quarry walls of fossil coral

   Midday · 45 min

   Walk along the quarry walls and look closely at the fossil coral cut open in the stone, next to some of the original quarry machinery.

2. 

   2

   Florida Keys Memorial

   Islamorada; monument to the victims of the 1935 Labor Day hurricane

   Any time · 15 min

   Stop at mile marker 82 and look at the keystone monument, its frieze of palms bending in the wind, and the tiled crypt.

Day 3 · ~1.1 mi (1.8 km)

1. 

   1

   Lignumvitae Key Botanical State Park

   off Islamorada, by boat only; old-growth hammock and a historic house

   Morning · 120 min

   Join a ranger-led walk through the island's hammock forest of holywood lignum vitae, gumbo-limbo and false mastic.

2. 

   2

   Indian Key Historic State Park

   off Islamorada, by kayak or boat; ruins of a 19th-century island town

   Morning · 120 min

   Paddle or take a boat out to the tiny island and walk among the foundations of a vanished town.

Day 4 · <0.1 mi (<0.1 km)

1. 

   1

   Long Key State Park

   Long Key; nature trails on the Atlantic shore

   Morning · 60 min

   Walk the Golden Orb or Layton nature trails along the mangroves and the Atlantic shore.