Siaes Corner - Rock Islands

Siaes Corner isn't always the first site people mention in Palau, but we think it’s consistently one of the best for pelagic action. You'll drop in and drift along the wall, eyes peeled for whatever the currents decide to bring past. We’ve seen enormous schools of barracuda here, spinning into shimmering tornadoes, and often a grey reef shark or two patrolling the deeper blue. What makes Siaes Corner special is that feeling of being on the edge of something vast. The wall itself has some lovely corals, with plenty of Black-back Butterflyfish flitting about and Scarlet Wrasse zipping over the reef, but it’s the open water that truly delivers. Keep an eye out for the resident Bumphead Parrotfish munching on the coral, especially early in the dive before they move off. We’d suggest going in the morning; the light is better, and the currents seem to bring more activity then. This isn't a site for lingering over macro, it's about the bigger picture. Come here ready for a dynamic drift, and you’ll likely leave with some fantastic memories.

Location
Rock Islands, Palau, Central & South Pacific
Coordinates
7.313855, 134.220170

Marine Protected Area: Ngerumekaol Spawning Area

Best Time to Dive in Rock Islands

The warmest water temperatures in Rock Islands occur in October, averaging 30.0°C. The coolest conditions are in February at 28.4°C.

Monthly Water Temperatures

  • January: 28.8°C
  • February: 28.4°C
  • March: 28.8°C
  • April: 29.3°C
  • May: 29.8°C
  • June: 29.9°C
  • July: 29.8°C
  • August: 29.7°C
  • September: 29.9°C
  • October: 30.0°C
  • November: 29.9°C
  • December: 29.6°C

Nearby Dive Sites in Rock Islands

Nearest Dive Centres to Siaes Corner

Marine Life in Rock Islands

Home to 198 recorded species including 171 reef fish, 15 sea cucumbers, 4 clams & mussels, 4 sea snails & nudibranchs, 2 starfish, 1 sea urchins.

Notable Species

Recommended Packing List for Siaes Corner

Based on average water temperature of 29.5°C, currents 13 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