Aluth Gal Mattha
Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Aluth Gal Mattha is a reef near Unawatuna on the south coast of Sri Lanka, with depths of 25 to 30 metres. It is open to divers of all levels.
The shallower parts of the site are easy, while the deeper sections go further down. The reef holds a wide variety of corals, reef fish and marine invertebrates, so there is plenty to look at at every depth.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Tawny Hermit CrabCoenobita rugosusReported here · unconfirmed
Thin-shelled Rock CrabGrapsus tenuicrustatusReported here · unconfirmed
Leaping BlennyAlticus saliensReported here · unconfirmed
Indian Vagabond ButterflyfishChaetodon decussatusReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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