Casa Blanca - Cozumel

Flynn Reef is a beauty, particularly if you’re into the smaller, more intimate stuff. We typically find the best diving on the eastern side, where the reef really starts to undulate, creating little ledges and swim-throughs. It’s here we’ve spotted those quirky Indo-Pacific hairy hermit crabs scuttling about, along with the strawberry drupe, its shell almost glowing. Keep an eye out for Ward’s damsel fish darting amongst the coral; their electric blue really pops. The coral here, especially the branching and boulder formations, is in good nick, providing plenty of nooks for banded cleaner shrimp and even the occasional hairy scorpionfish – camouflaged perfectly, so look close. We’ve had some truly fantastic encounters with schools of spangled emperor, their silver scales catching the light as they glide past. Visibility averages around 16m, which is good enough to appreciate the details, and the max depth of 15m means longer bottom times. It’s a great spot for photographers keen on macro subjects and anyone who enjoys a relaxed, colourful dive.

Location
Cozumel, Mexico, North America
Coordinates
20.364100, -87.029600
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 Casa Blanca

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 Casa Blanca

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