J-3 - Cozumel

Manta Point is one of those dives that sticks with you, a cleaning station where the big oceanic mantas come in, along with their reef cousins. We’ve seen both *Mobula birostris* and *Mobula alfredi* here, each with their own patterns and markings, which is pretty special. You drop into the blue at the mouth of the pass, right where the currents meet, so it’s not a dive for the easily flustered. Visibility often hovers around 12 meters, sometimes better, sometimes a bit murky, but honestly, when a manta bigger than your car glides over, you don't really notice anything else. We love settling onto the coral at about 15 meters, just watching the show. The mantas cruise in, circle, and hover for their clean, sometimes so close you can count the remoras clinging to their undersides. It’s not just mantas either; we’ve seen dorado flashing past in the blue and the occasional sperm whale on deeper excursions further out, though that's a rare treat. This is a dive for experienced divers who are comfortable with current and want to witness the sheer grace of these giants up close.

Location
Cozumel, Mexico, North America
Coordinates
20.831000, -86.873600
Type
reef

Marine Protected Area: Arrecife de Puerto Morelos

Best Time to Dive in Cozumel

The warmest water temperatures in Cozumel occur in September, averaging 29.8°C (up to 32.1°C). The coolest conditions are in February at 26.9°C.

The calmest sea conditions are typically in September with average wave heights of 0.70m. Average current speed: 95.0 cm/s.

Monthly Water Temperatures

  • January: 27.2°C (air: 26.2°C)
  • February: 26.9°C (air: 26.4°C)
  • March: 27.0°C (air: 26.5°C)
  • April: 27.5°C (air: 27.4°C)
  • May: 28.4°C (air: 28.2°C)
  • June: 29.0°C (air: 28.8°C)
  • July: 29.4°C (air: 29.4°C)
  • August: 29.6°C (air: 29.5°C)
  • September: 29.8°C (air: 29.5°C)
  • October: 29.6°C (air: 29.0°C)
  • November: 28.8°C (air: 27.9°C)
  • December: 27.9°C (air: 26.8°C)

Nearby Dive Sites in Cozumel

Nearest Dive Centres to J-3

Marine Life in Cozumel

Home to 181 recorded species including 140 reef fish, 15 hard corals, 9 other, 7 sharks & rays, 3 seagrass & algae, 2 whales & dolphins.

Notable Species

Recommended Packing List for J-3

Based on average water temperature of 28.4°C, visibility 23 nmi, currents 87 cm/s.

  • Shorty or Rashguard - warm 28°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins (stiff blade recommended for strong currents)
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What is the maximum depth for diving at the J-3 dive site?
The maximum depth for diving at the J-3 dive site is 9 meters. This shallow depth makes it accessible while still offering a vibrant underwater experience.
What marine life and wreck features can divers expect to see at the J-3 submarine?
At the J-3 dive site, divers can expect to encounter a variety of marine life, including lobsters, triggerfish, barracudas, blue tangs, and angelfish. Occasionally, turtles can also be spotted, especially during their season. It's important to note that J-3 is a beautiful reef dive, not a submarine or wreck site.
Is the J-3 dive site suitable for beginner divers, or is it considered challenging?
The J-3 dive site is considered to have an intermediate difficulty level. While its maximum depth of 9m is relatively shallow, the "intermediate" rating suggests it might present certain challenges that could be less suitable for absolute beginners without proper guidance or experience.
What are the optimal times or conditions to dive the J-3 wreck, considering currents?
The provided data does not specify optimal times or conditions for diving the J-3 dive site, nor does it mention current strength. For general guidance on dive planning and conditions, you might find our When to Dive resource helpful. Please remember that J-3 is a reef dive, not a wreck.
What level of scuba diving certification is needed to dive the J-3 submarine wreck?
While the specific certification level is not detailed, the J-3 dive site is rated as intermediate difficulty. This typically suggests that divers should have at least an Open Water Diver certification, possibly with some experience, rather than being suitable for introductory dives. It's important to clarify that J-3 is a vibrant reef dive, not a submarine wreck.
How strong are the currents at the J-3 dive site, and what are the typical underwater conditions?
The provided data does not specify the strength of currents at the J-3 dive site. However, typical underwater conditions include an average visibility of 13 meters. Divers can explore a beautiful reef environment featuring a blanket of white sand alongside a large wall of corals.