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Key Largo Glass-Bottom Boat Cruise to John Pennekamp Coral Reef

Key Largo Glass-Bottom Boat Cruise to John Pennekamp Coral Reef

Board the Key Largo Princess for a two-hour glass-bottom cruise to John Pennekamp Coral Reef State Park. From the sun deck to the flat viewing windows, this tour offers close-up ocean life viewing with interpretation and low-impact access to one of the Keys’ signature reefs.

Key Largo, Florida
2 hours
By Adventure CollectiveOctober 2025

The Experience

Before You Go

Check in early

Arrive at the Holiday Inn docks 15 minutes before departure to allow time for boarding and a quick safety briefing.

Use reef-safe sunscreen

Apply biodegradable, reef-safe sunscreen before boarding to protect coral from chemical damage.

Manage seasickness proactively

If you get motion sick, take medication 30–60 minutes before departure or sit midship where motion is least noticeable.

Bring a small camera and polarized lens

A compact camera with polarization reduces glare through the water and captures the reef’s colors from the deck and viewing cabin.

Local Knowledge

Hidden Gems

  • Molasses Reef lookout from the boat—ask the crew about the shallow bommies where juvenile fish gather
  • Crocodile Lake National Wildlife Refuge nearby for morning birdwatching and a quieter contrast to the reef tours

Wildlife

  • sergeant major fish (colorful schooling tropical fish)
  • brown pelicans and occasional spotted eagle rays

Conservation Note

The reef faces pressures from warming waters and storm damage; operators emphasize no-touch policies and encourage reef-safe sunscreen and responsible viewing to minimize impact.

John Pennekamp Coral Reef State Park was established in 1963 as the nation’s first undersea park, protecting shallow reefs that have guided local fishing and tourism for generations.

Photographer's Notes

Best times:Late morning to early afternoon for underwater visibility, Golden hour for dramatic boat and horizon shots, Midday for the clearest glass-bottom viewing
Key viewpoints:
  • Sun deck forward for horizon and boat-composition shots
  • Central viewing cabin over the glass windows for close-up reef photos
  • Port and starboard rails for framing passing cays and water texture
Subjects to capture:underwater coral formations and schools of fish, boat and passengers against the Florida Keys skyline, textured water, loops of light, and reef shadows

What to Bring

Reef-safe sunscreenEssential

Protects skin and the coral ecosystem from harmful chemicals.

Polarized sunglassesEssential

Reduces surface glare to improve visibility through viewing windows and when photographing the reef.

Light windbreaker or long-sleeve layer

Keeps you comfortable on the open deck during breezy mornings or cooler winter afternoons.

Motion-sickness relief (patch or pills)

Prevents nausea on choppier days; take before boarding if you are sensitive.

Common Questions

Does this tour include snorkeling or diving?

No—this specific offering is a glass-bottom boat cruise for reef viewing only; snorkeling and dive tours are separate services offered by other operators in Key Largo.

Are restrooms available onboard?

Yes, the Key Largo Princess has onboard restrooms and an air-conditioned cabin for comfort.

Is the boat wheelchair accessible?

The listing indicates wheelchair accessibility; contact the operator ahead of time to confirm any specific mobility needs.

How long is the cruise and how far out do you go?

The cruise is approximately two hours with about a 45-minute run to the reef areas in John Pennekamp Coral Reef State Park and surrounding sanctuary sites.

What should I bring with me?

Bring reef-safe sunscreen, a hat, water, a camera with polarized filter if possible, and any motion-sickness medication you prefer.

What is the cancellation policy?

For a full refund cancel at least 24 hours before departure; the operator may cancel for bad weather or insufficient travelers and will offer rescheduling or refund options.

Book This Experience

Check Availability

Duration

2 hours

Location

Key Largo, Florida

Difficulty

easy

Fitness Level

Suitable for all fitness levels; minimal mobility required to board and move around the vessel.

Free cancellation available

Ready to Explore Key Largo?

Book your guided walking tour and discover the hidden stories of this historic mountain city.

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Key Largo Glass-Bottom Boat Cruise to John Pennekamp Coral Reef - Key Largo - Adventure Collective Travel