HMS Hermes
Location guideTrincomalee

HMS Hermes

4255 mtech+wreckscoral● In season now

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Overview

The world's first purpose-built aircraft carrier, sunk by Japanese dive-bombers on 9 April 1942 and now lying on her port side in roughly 50 metres of water off Sri Lanka's east coast. The 180-metre hull is a designated Commonwealth war grave and a decompression-only dive: the flight deck, gun mounts and bridge are crusted in soft coral and sponge and patrolled by schooling snapper, trevally and batfish, with groupers and lionfish in the shadows. Real depth, limited bottom time and offshore current make this a serious technical wreck, reachable only in the calm May-to-September east-coast season.

Briefing note

Decompression/technical dive only: wreck top around 42m, seabed about 53-55m, lying on the port side. Designated Commonwealth war grave - no penetration of grave spaces or artefact removal. Strong offshore current and surge are common; suitable only for experienced trimix/technical wreck divers. Access limited to the calm May-September east-coast season.

What you'll see

6 species curated
  • Giant trevally
    year-round
    Peak: May · Jun · Jul · Aug · Sep
  • Bluestripe snapper
    year-round
    Peak: May · Jun · Jul · Aug · Sep
  • Batfish
    year-round
    Peak: May · Jun · Jul · Aug · Sep
  • Grouper
    year-round
    Peak: May · Jun · Jul · Aug · Sep
  • Lionfish
    year-round
    Peak: May · Jun · Jul · Aug · Sep
  • Bull shark
    rare
    Peak: Jun · Jul · Aug

Conditions

MonthWaterVisibilityCurrent
Jan2728 °C512 mmoderate
Feb2728 °C614 mmoderate
Mar2729 °C818 mmoderate
Apr2830 °C1222 mmoderate
May2830 °C1525 mmoderate
Jun2830 °C1530 mmoderate
Jul2830 °C1530 mmoderate
Aug2830 °C1530 mstrong
Sep2830 °C1225 mmoderate
Oct2729 °C818 mmoderate
Nov2728 °C512 mstrong
Dec2628 °C510 mstrong

Season calendar

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Peak season highlighted · current month outlined

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