Mantis Valley
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.
Dived here today? How were conditions vs. what we showed?
About this site
Si Amil is a small island off the coast of Sabah in the Bahagian Tawau district of Malaysian Borneo, in the Celebes Sea near Semporna. The area sits within a region known for its reef systems and proximity to other dive destinations such as Sipadan and Mabul. Mantis Valley would be reached by boat from Si Amil or nearby coastal operators in the Semporna area.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Stumpy-spined CuttlefishAscarosepion bandenseReported here · unconfirmed
Broadclub CuttlefishAscarosepion latimanusReported here · unconfirmed
Ribbon EelRhinomuraena quaesitaReported here · unconfirmed
Bigfin Reef SquidSepioteuthis lessonianaReported here · unconfirmed
Green Sea TurtleChelonia mydasObserved near here · iNaturalist
Blue DragonPteraeolidia semperiObserved near here · iNaturalist
Dusky NembrothaNembrotha kubaryanaObserved near here · iNaturalist
Hawksbill Sea TurtleEretmochelys imbricataObserved near here · iNaturalist
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
No notes yet. Dived here? Be the first to leave a tip.
Share a write-up or a photo. Submissions are reviewed before they appear on the page.
Nearby dive sites
Shops that dive here
No shops have listed this site yet.