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Hotels, dive operators, gear, and how to get here are on the Ari Atoll location page.
Overview
Pinnacle in North Ari Atoll famous for grey reef sharks circling the top in current. The reef bristles with sea fans and overhangs from 8 m to 30 m. Drift on, hook in at the top of the thila, watch the shark traffic.
Briefing note
Best dived on incoming tide. Grey reef shark numbers peak in afternoons.
What you'll see
4 species curated- year-roundGrey reef shark
- year-roundSchooling barracuda
- year-roundNapoleon wrasse
- seasonalEagle ray
Sightings evidence
1 record on file- high confidenceGrey reef shark
- Last confirmed
- Apr 2026
- Recent records
- 130 within 10 km
Sources & methodology
How we summarise this
We aggregate confirmed occurrence records from GBIF and OBIS within a fixed radius of each dive site. Occurrence records confirm presence and reveal seasonality clustering, but they DO NOT measure per-dive probability — there is no eligible-effort denominator. We deliberately do not publish a numeric '% chance of sighting' from this data.
Sources
- Global Biodiversity Information Facility — GBIF Secretariat
- Ocean Biodiversity Information System — IOC-UNESCO
- iNaturalist — California Academy of Sciences & National Geographic Society
- IUCN Red List of Threatened Species — International Union for Conservation of Nature
- Wildbook (Sharkbook, Whale Shark, Manta Matcher) — Wild Me
- OBIS-SEAMAP — Duke University Marine Geospatial Ecology Lab / OBIS
- WoRMS — World Register of Marine Species — Flanders Marine Institute (VLIZ)
- FishBase — FishBase Consortium
- Atlas of Living Australia — CSIRO / GBIF Australia
- REEF Volunteer Fish Survey — Reef Environmental Education Foundation
Conditions
| Month | Water | Visibility | Current |
|---|---|---|---|
| Jan | 27–29 °C | 25–35 m | moderate |
| Feb | 27–29 °C | 25–35 m | moderate |
| Mar | 28–30 °C | 25–35 m | moderate |
| Apr | 28–30 °C | 20–30 m | moderate |
| May | 28–30 °C | 15–25 m | moderate |
| Jun | 27–29 °C | 10–20 m | moderate |
| Jul | 27–29 °C | 10–20 m | moderate |
| Aug | 27–29 °C | 10–20 m | moderate |
| Sep | 27–29 °C | 15–25 m | moderate |
| Oct | 28–30 °C | 20–30 m | moderate |
| Nov | 28–30 °C | 25–35 m | moderate |
| Dec | 27–29 °C | 25–35 m | moderate |
Season calendar
Peak season highlighted · current month outlined
Gear for this site
Beyond the basic kit- Reef hook — Currents at the top of the thila are strong enough that hooking in is the only way to hold position.
- SMB + reel — Drift exits over deep water — surface marker is required by all operators here.
Next step
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