Board the Island Pearl for a three-hour snorkel cruise out of Marathon that mixes live narration about Flagler-era history with easy reef snorkeling. Comfortable for non-swimmers and snorkelers alike, the trip highlights shallow reefs, marine life, and iconic island landmarks.
More ways to explore the area's outdoor wonders
The Island Pearl cuts a slow, confident arc through Key West’s quieter neighbor: Marathon. Salt air tugs at your hair, and the deck hums with the low conversation of fellow travelers as the boat threads past the Seven Mile Bridge and old railway pilings that once ferried Henry Flagler’s iron tracks across the islands.
Difficulty
easy
Duration
3 hours
Fitness Level
Suitable for all fitness levels; basic swimming ability recommended for snorkeling segments
Wildlife
History
The Florida Keys’ offshore reefs formed from ancient coral growth on a Pleistocene limestone platform; later, the islands were altered by Flagler’s Overseas Railroad, which reshaped shorelines and connected communities.
Conservation
The Keys rely on reef protection and visitor education—use reef-safe sunscreen, avoid touching corals, and follow crew guidance to minimize your footprint.
Reserve your spot on the A Snorkel Tour with a Twist of History, Marathon, Florida Keys today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Use only reef-safe sunscreen to protect coral and comply with local conservation practices.
Arrive early for check-in
Plan to arrive at least 20 minutes before departure so names can be confirmed on the manifest and you can get a good spot on deck.
Motion-sickness prep
If you’re prone to seasickness, take preventative meds or choose a morning trip when seas are often calmer.
Use provided flotation if unsure
The tour supplies swim vests—use them if you’re not a confident snorkeler to stay safe and comfortable.
Reef-safe sunscreen
Protects skin while preventing damage to corals and complies with local rules.
summer
Snorkel mask (personal)
A well-fitting mask reduces fogging and improves comfort in the water.
Non-slip deck shoes or sandals
Protects feet on slippery docks and helps board the boat safely.
summer
Light waterproof layer or long-sleeve sun shirt
Provides sun protection and a wind barrier during cooler mornings or breezy returns.
spring