Colombia Shallows - Cozumel

Guerrilla Bay, for us, is one of those spots that just keeps giving, especially if you catch it right. We're talking about a cracking shore dive down on the NSW South Coast, and while 'The Pot' on the north side gets all the glory for experienced divers when conditions align, it's 'The Beach' that truly captured our attention. It’s got this interesting rocky reef, shelving up from the sand in these cool, angled walls that go from about 11m deep to maybe 3m or 4m, topped with thick seaweed. Sure, the visibility can be a bit hit or miss at 7m on average, but when it's good, it’s *really* good. You’re weaving through kelpy crevices, and we’ve routinely found blue groper here, big inquisitive ones, along with wrasse and luderick. Keep an eye out for octopus tucked into the rocks. We’ve even spotted Stingrays gliding over the sand flats. It's a surprisingly rich little ecosystem, proving you don't need huge depths for an engaging dive. Dive it on a calm day, definitely.

Location
Cozumel, Mexico, North America
Coordinates
20.320000, -87.024200
Type
reef

Marine Protected Area: Arrecifes de Cozumel

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 Colombia Shallows

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 Colombia Shallows

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