Official Rarotonga dive itinerary and weather-based site selection.
Cook Islands · Rarotonga
Edna’s Anchor is a boat-accessed deep reef dive on Rarotonga’s north side.
Edna’s Anchor is a boat-accessed deep reef dive on Rarotonga’s north side.
Edna’s Anchor is a boat-accessed deep reef dive on Rarotonga’s north side, following a sand-and-reef edge to a sharp drop-off with clear water, hard-coral bommies, and a resident anchor feature. It is a relaxed but deeper profile rather than a current-heavy run, so the main planning focus is buoyancy, depth awareness, and choosing a calm-weather day. The site works best for divers who want an easy-to-organize north-coast outing that still feels substantial underwater.
Safety Notes
The reef drops steeply beyond about 30 m to roughly 65 m; maintain buoyancy control and monitor depth and gas closely.
Access Restrictions
Boat access only through a local Rarotonga dive operator; the site is visited as part of the north-side reef circuit and is typically chosen when conditions are suitable.
Legal Notes
Follow local reef etiquette and operator instructions; keep hands off coral bommies and marine life.
Community notes to help plan your visit.
Scuba Diving
A deeper scuba dive with main points of interest around 22–30 m and a wall dropping to about 65 m.
Freediving
Not the best freedive target because the interesting structure sits on a deeper reef edge and the site is better treated as a scuba dive.
Snorkeling
Snorkeling is only worthwhile on very calm days and mainly near the shallow reef edge; the anchor and drop-off are a scuba feature.
Species commonly reported at this site, with direct links into their wildlife guides.
Conservative baseline from public research. No community dives logged yet.
Last Updated
Research Sources
Official Rarotonga dive itinerary and weather-based site selection.
Edna’s Anchor depth profile, deep edge, and clear-water note.
North-side site context, popularity, current, and reef conditions.
Country-level visibility and winter season context.
North-side boat logistics and operator support.

Avarua Passage: boat drift through Rarotonga's harbour pass.

Shallow historic shipwreck off Avarua.

Gentle Rarotonga reef for training and easy second dives.