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
Siau is a small volcanic island in North Sulawesi, sitting in the Sangihe Islands chain between Sulawesi's mainland and the Philippines. Dive sites along its coast are typically reached by boat from local settlements on the island.
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.
Snowflake MorayEchidna nebulosaObserved near here · iNaturalist
Eel BornellaBornella anguillaObserved near here · iNaturalist
Humphead BannerfishHeniochus variusObserved near here · iNaturalist
Elegant PhyllidiaPhyllidia elegansObserved 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.
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