Key Largo Glass-Bottom Boat to John Pennekamp Coral Reef
Difficulty
easy
Duration
2 hours
Fitness Level
Suitable for most fitness levels; requires only short walks and standing while boarding
Overview
Board the Key Largo Princess for a two-hour glass-bottom cruise to John Pennekamp Coral Reef State Park. Enjoy sun deck views, guided narration, and unobstructed windows into a vibrant reef ecosystem without getting wet.
Key Largo Glass-Bottom Boat to John Pennekamp Coral Reef
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You step off the docks at the Holiday Inn and the Key Largo Princess waits like a small floating observatory — 75 feet of aluminum, a sun deck that catches the light, and a center cabin fitted with broad viewing windows that peer straight into the Atlantic.
Adventure Photos
Adventure Tips
Check in early
Arrive at the Holiday Inn docks at least 15 minutes before departure to allow time for boarding and orientation.
Use reef-safe sunscreen
Apply biodegradable, reef-safe sunscreen before boarding to protect coral and avoid oily residue on glass windows.
Bring motion-sickness medication if needed
The trip runs 45 minutes offshore and can be bumpy; take preventative meds if you get seasick.
Dress in layers
Sun on deck can be strong while the cabin is air-conditioned—bring a light layer for comfort.
Local Insights
Wildlife
- Green sea turtle
- Atlantic spotted dolphin
History
John Pennekamp Coral Reef State Park was established in the 1960s as the nation’s first undersea park, created to protect and interpret the offshore reefs.
Conservation
The sanctuary enforces no-anchoring zones and educates visitors about reef-safe sunscreen and responsible viewing to reduce stress on corals and fish.
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Adventure Hotspots in Key Largo
Frequently Asked Questions
Recommended Gear
Reef-safe sunscreen
Protects skin and prevents chemical damage to coral while on the sun deck.
summer specific
Polarized sunglasses
Reduces surface glare so you can see into the water from the sun deck or windows.
summer specific
Reusable water bottle
Staying hydrated on deck keeps you comfortable in sun and salt air.
Light windbreaker
Blocks wind on the sun deck and adds warmth during cooler mornings or winter outings.
winter specific