Alyui Bay - Raja Ampat

Alyui Bay, tucked into the western side of Waigeo, is where we head when the mission is small stuff. Forget the big pelagics here; this is critter territory. We’ve spent hours finning slowly along its walls and slopes, spotting pygmy seahorses clinging to gorgonians and ghost pipefish swaying in the current. It’s a macro photographer's dream, a place where patience really pays off. The max depth usually hovers around 25 metres, making it approachable for most divers, though keeping an eye on your buoyancy is key when you’re hovering over delicate subjects. Currents can pick up, especially near the mouth, so it’s not always a completely placid drift.

Location
Raja Ampat, Indonesia, Southeast Asia
Coordinates
-0.500000, 130.200000
Type
reef

Marine Protected Area: SUAKA ALAM PERAIRAN KEPULAUAN RAJA AMPAT DAN LAUT SEKITARNYA

Best Time to Dive in Raja Ampat

The warmest water temperatures in Raja Ampat occur in November, averaging 30.3°C. The coolest conditions are in July at 29.3°C.

Monthly Water Temperatures

  • January: 29.7°C
  • February: 29.4°C
  • March: 29.6°C
  • April: 29.9°C
  • May: 29.9°C
  • June: 29.7°C
  • July: 29.3°C
  • August: 29.4°C
  • September: 29.6°C
  • October: 30.0°C
  • November: 30.3°C
  • December: 30.1°C

Nearby Dive Sites in Raja Ampat

Nearest Dive Centres to Alyui Bay

Marine Life in Raja Ampat

Home to 250 recorded species including 176 reef fish, 43 hard corals, 8 seagrass & algae, 5 sea cucumbers, 4 clams & mussels, 4 other.

Notable Species

Recommended Packing List for Alyui Bay

Based on average water temperature of 29.7°C, currents 20 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

Frequently Asked Questions

What are the typical diving depths at Alyui Bay dive sites?
While general depths for all Alyui Bay dive sites are not specified, the site Dinding Selatan, located within the bay's mouth, features depths fluctuating between a 15-25 metre deep wall. Divers exploring this renowned critter hunting ground can expect varied topography. This specific depth range provides ample opportunity for exploration.
What kind of marine life and underwater features can divers expect to see in Alyui Bay?
Alyui Bay is celebrated as the best place in Raja Ampat for critter hunting, offering divers a chance to discover unique macro marine life on its reefs. Underwater features include a large bay mouth with a central islet known as Channel Island, and an inner bay that hosts pearl farms, which can be visited upon request. The dive site Dinding Selatan also features a 15-25 metre deep wall, adding to the diverse topography.
How challenging are the dive sites in Alyui Bay for scuba divers?
The dive sites in Alyui Bay are generally considered to be of intermediate difficulty for scuba divers. This rating suggests that divers should have some experience beyond basic certification to comfortably explore the area's diverse underwater environments. It's an excellent location for those looking to advance their diving skills.
When is the best time of year to dive in Alyui Bay for optimal conditions and marine life sightings?
The provided information for Alyui Bay does not specify the best time of year for optimal diving conditions or marine life sightings. For general guidance on seasonal diving in the region, please refer to our When to Dive resources. Local dive operators can often provide the most current seasonal insights.
What scuba diving certifications are recommended or required to dive in Alyui Bay?
The available data for Alyui Bay does not specify any recommended or required scuba diving certifications. Given the intermediate difficulty rating, divers should possess a certification level appropriate for such conditions. For information on general equipment and training, please consult our resources or a local dive center.
What are the typical current conditions and visibility like when diving in Alyui Bay?
The provided data for Alyui Bay does not include specific information regarding typical current conditions or visibility. Divers planning a trip should consult local dive operators for the most up-to-date details on these factors, which can vary. Understanding these conditions is crucial for a safe and enjoyable dive.