Avana Passage - Rarotonga

Avana Passage on Rarotonga’s east coast is one of our favourite easy dives. We love the feeling of drifting through the mouth of Ngatangiia Harbour, like exploring a sunken pathway. It’s mostly sand underfoot, but keep an eye out for Desjardin's Sailfin Tangs darting around the rocky edges. The highlight for us is always the rock formations just outside the passage; they really do feel like ancient ruins, carved by the ocean over millennia. We’ve spotted plenty of morays tucked into crevices here, and if you’re lucky, a Humphead wrasse might cruise past. For those who prefer a relaxed dive with consistent visibility, Avana Passage is a solid choice. You can drift gently in with the incoming tide, spotting butterflyfish and various wrasse species in the calmer waters. It’s a shallower dive, maxing out around 17 metres, making it perfect for a long bottom time and a gentle introduction to Rarotonga’s reef life.

Location
Rarotonga, Cook Islands, Central & South Pacific
Coordinates
-21.243800, -159.723100
Type
drift

Best Time to Dive in Rarotonga

The warmest water temperatures in Rarotonga occur in January, averaging 26.5°C. The coolest conditions are in December at 26.5°C.

Monthly Water Temperatures

  • January: 26.5°C (air: 24.8°C)
  • February: 26.5°C (air: 25.2°C)
  • March: 26.5°C (air: 25.5°C)
  • April: 26.5°C (air: 25.0°C)
  • May: 26.5°C (air: 24.2°C)
  • June: 26.5°C (air: 22.8°C)
  • July: 26.5°C (air: 22.3°C)
  • August: 26.5°C (air: 21.7°C)
  • September: 26.5°C (air: 22.0°C)
  • October: 26.5°C (air: 22.1°C)
  • November: 26.5°C (air: 22.6°C)
  • December: 26.5°C (air: 24.0°C)

Nearby Dive Sites in Rarotonga

Nearest Dive Centres to Avana Passage

Marine Life in Rarotonga

Home to 143 recorded species including 102 reef fish, 14 hard corals, 10 sea snails & nudibranchs, 7 sea cucumbers, 2 sea urchins, 2 starfish.

Notable Species

Recommended Packing List for Avana Passage

Based on average water temperature of 26.5°C.

  • Shorty or Rashguard - warm 26°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 is the typical depth range for diving in Avana Passage, and are there options for deeper dives?
The maximum depth for diving in Avana Passage is 17 meters. This site offers a relatively shallow dive experience, and the provided information does not indicate options for significantly deeper dives beyond this maximum.
What kind of marine life and underwater features can divers expect to see at Avana Passage?
Divers exploring Avana Passage can expect to encounter fascinating marine life such as lion fish and eels. Additionally, the outskirts of the passage feature stunning rock formations that evoke the feeling of being in an underwater ruin, creating a unique visual experience.
How challenging is diving in Avana Passage, and is it suitable for all experience levels?
Diving in Avana Passage is rated as an intermediate difficulty, making it best suited for divers with some prior experience. As a drift dive, it requires comfort with currents and specific dive techniques, so it may not be ideal for absolute beginners or those without appropriate certification.
What is the best time of year to dive Avana Passage for optimal conditions and marine life sightings?
The provided information does not specify the best time of year to dive Avana Passage for optimal conditions or marine life sightings. For general guidance on diving in the Cook Islands, you might consult a when-to-dive guide.
What scuba diving certifications are required to dive in Avana Passage?
While specific certification requirements are not detailed for Avana Passage, its intermediate difficulty rating suggests that an Open Water Diver certification along with some experience, possibly including drift diving, would be beneficial. It's always recommended to check with local dive operators in Rarotonga for their specific prerequisites.
What are the typical current conditions and visibility like when diving Avana Passage?
Avana Passage is characterized as a drift dive, indicating that divers can expect current conditions to be present. Visibility at this site is typically excellent, averaging around 25 meters, offering clear views of the underwater environment.