
Passage Island Rockpile
Dive site
A submerged granite rockpile at the northern tip of Passage Island that concentrates Andaman endemic species found almost nowhere else in India. The jumbled boulders create a honeycomb of crevices and swim-throughs hosting endemic damsels, Andaman chromis, and goby species described from these very rocks. Currents hitting the pile create upwellings that draw pelagics over the top while macro life crowds every centimetre of encrusted stone below.
Conditions
Depth
6 to 30 m
Open water and up
Current
Often strong
Can pick up on the edge
Visibility
5 to 12 m
Clearest in the calm season
Water
25 to 30°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 26 | 27 | 27 | 26 | 25 |
| Vis (m) | 18 | 18 | 18 | 15 | 10 | 5 | 5 | 5 | 8 | 12 | 15 | 18 |
| Current | Moderate | Moderate | Moderate | Gentle | Moderate | Strong | Strong | Strong | Moderate | Moderate | Moderate | Moderate |
Your chances of seeing each animal
Andaman damselfish
Sometimes
About 1 in 3 dives
Clearfin squirrelfish
Sometimes
About 1 in 3 dives
Frogfish
Photo: Dan Schofield · CC BY
Sometimes
About 1 in 3 dives
Whitetip reef shark
Photo: Craig Fujii · CC BY-NC-ND
Sometimes
About 1 in 3 dives
Barracuda school
Photo: Christian Amador Da Silva · © all rights reserved
Rare
Now and then
Field journal
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