Agua Negra Cozumel - Cozumel

Agua Negra isn't your typical reef dive; it's Cozumel’s blackwater offering, and honestly, we’re completely hooked. You head out a few miles from shore, drop in at dusk, and spend your dive at a maximum of 18 meters, drifting in the inky blackness. It feels like you’re floating in space, with only the glow of your torch to illuminate the incredible miniature world migrating up from the deep. We've seen some utterly bizarre and beautiful things here. Think tiny larval crabs and squid, transparent eel larvae, and juvenile fish like baby swordfish or sailfish, no bigger than your finger. The way they reflect your light, darting through the darkness, is mesmerizing. It’s a completely different rhythm to reef diving, quieter, more focused. We’d recommend it for divers who are comfortable with good buoyancy and night diving, and who appreciate the truly unique, delicate side of marine life. It’s a special kind of hunt, spotting those almost invisible creatures in the vast open ocean.

Location
Cozumel, Mexico, North America
Coordinates
20.448000, -87.052400
Type
reef

Marine Protected Area: Caribe Mexicano

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 Agua Negra Cozumel

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 Agua Negra Cozumel

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