The Abyss - Sulawesi

Willy’s Hole, tucked away near Turtle Harbor, delivers a proper dose of that classic Roatán wall diving we keep coming back for. We love the swim-through at 24 metres, it’s less a deep cavern and more a dramatic archway carved into the reef. The light filters through from both ends, creating a really cool effect, especially if you catch it when the sun’s a bit lower. On the reef top, around 10-15 metres, you’ll find the usual busy scene – schools of bluestriped grunts often hang out, and we’ve spotted redlip blennies darting between the corals. It’s a great spot for those who appreciate a bit of overhead environment without needing cave certification. Keep an eye out for greenband gobies on the sponges, they’re tiny but everywhere if you look closely. Visibility averages around 13 metres, which is decent enough to appreciate the scale of the wall. We’d suggest going in the morning before any afternoon chop picks up. While you might see a lionfish or two, the main draw here is the structure itself and the smaller reef inhabitants. It’s a comfortable dive for advanced open water divers looking for something a little different from a straight wall.

Location
Sulawesi, Indonesia, Southeast Asia
Coordinates
-0.119700, 121.642600
Type
cave

Marine Protected Area: Kepulauan Togean

Best Time to Dive in Sulawesi

The warmest water temperatures in Sulawesi occur in November, averaging 30.4°C. The coolest conditions are in September at 28.7°C.

Monthly Water Temperatures

  • January: 29.5°C
  • February: 29.4°C
  • March: 29.8°C
  • April: 30.3°C
  • May: 30.3°C
  • June: 29.7°C
  • July: 29.1°C
  • August: 28.8°C
  • September: 28.7°C
  • October: 29.5°C
  • November: 30.4°C
  • December: 30.2°C

Nearby Dive Sites in Sulawesi

Nearest Dive Centres to The Abyss

Marine Life in Sulawesi

Home to 252 recorded species including 162 reef fish, 53 hard corals, 9 seagrass & algae, 9 sea snails & nudibranchs, 6 clams & mussels, 4 sea cucumbers.

Notable Species

Recommended Packing List for The Abyss

Based on average water temperature of 29.7°C, currents 4 cm/s.

  • Shorty or Rashguard - warm 30°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