Cozumel Two-Tank Certified Dive: Best Reefs, Practical Tips & What to Expect
Difficulty
moderate
Duration
5 hours
Fitness Level
Moderate fitness—able to carry gear, climb in/out of boats and complete two hour-long dives with surface interval
Overview
Spend five hours exploring two of Cozumel’s top reef sites on a guided two‑tank dive. This certified trip pairs long bottom times, crystal‑clear visibility, and experienced divemasters who handle logistics so you can focus on the reef.
Cozumel Two-Tank Certified Dive: Best Reefs, Practical Tips & What to Expect
Select participants and date
The sun cracks open over the Caribbean and the boat slips away from the pier, leaving a ribbon of island shoreline behind. Salt stings the back of the neck, engines hum into a steady cadence, and the captains scan the water for the day's best reefs. Within an hour the turquoise darkens, and the first line of coral appears beneath the surface—an invitation that requires nothing more than the courage to fall through it.
Adventure Photos
Adventure Tips
Bring your certification card
Your Open Water (or higher) certification card and any recent logbook entries are required for boarding and diving; without them you may be refused.
Hydrate and eat light
Drink water before the trip and avoid heavy meals; dehydration and full stomachs worsen seasickness and post-dive discomfort.
Use reef‑safe sunscreen
Apply mineral-based sunscreen before boarding and cover up with a rash guard topside to protect coral and marine life.
Practice neutral buoyancy
Good buoyancy saves coral and improves photos—ask the divemaster for a quick refresher if it’s been a while.
Local Insights
Wildlife
- Green and hawksbill sea turtles
- Nurse sharks and abundant reef fish
History
Cozumel became an international dive destination in the 1960s; its reefs sit on ancient limestone shelves shaped by sea-level changes and strong currents.
Conservation
Operators emphasize no‑touch diving, buoyancy control, and reef‑safe sunscreen; local groups work to monitor coral health and reduce anchor damage.
Select participants and date
Adventure Hotspots in San Miguel de Cozumel
Frequently Asked Questions
Recommended Gear
Personal dive computer
Tracks bottom time and decompression limits more accurately than group tables.
Shorty or 3mm wetsuit
Provides thermal comfort in cooler months and protection against scrapes.
winter specific
Mask and snorkel
A well-fitted mask improves comfort and a snorkel saves air during surface intervals.
summer specific
Waterproof camera or housing
Wide-angle or dome setups capture reef structures and schooling fish effectively.