The Underground Roatan - Roatán

The Underground Roatan is exactly what it sounds like, a series of tunnels and swim-throughs carved into the reef. It’s a fun maze to explore, with light shafts piercing through overhead openings, illuminating schools of silversides. We'd suggest this site for divers comfortable with overhead environments and good buoyancy control, making it a great option for advanced open water certification dives. Expect to encounter crabs, shrimp, and occasionally a nurse shark tucked away in a crevice.

Location
Roatán, Honduras, Central America
Coordinates
16.405106, -86.412025

Marine Protected Area: Islas de la Bahía

Best Time to Dive in Roatán

The warmest water temperatures in Roatán occur in September, averaging 30.2°C. The coolest conditions are in February at 27.3°C.

Monthly Water Temperatures

  • January: 27.4°C
  • February: 27.3°C
  • March: 27.4°C
  • April: 28.0°C
  • May: 28.9°C
  • June: 29.3°C
  • July: 29.1°C
  • August: 29.7°C
  • September: 30.2°C
  • October: 30.0°C
  • November: 29.1°C
  • December: 28.3°C

Nearby Dive Sites in Roatán

Nearest Dive Centres to The Underground Roatan

Marine Life in Roatán

Home to 170 recorded species including 150 reef fish, 5 sea snails & nudibranchs, 5 hard corals, 4 other, 1 sharks & rays, 1 seagrass & algae.

Notable Species

Recommended Packing List for The Underground Roatan

Based on average water temperature of 28.7°C, currents 7 cm/s.

  • Shorty or Rashguard - warm 29°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • 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