Serena Island

Sarena Island sits near the Lembeh Strait off the northeastern tip of Sulawesi, Indonesia, an area better known for the muck diving sites along the mainland and Lembeh Island shores. The strait separates Lembeh Island from the Sulawesi mainland near the city of Bitung. The site here is a reef reaching a maximum depth of around 28 metres. Divers have reported strong currents, upward flowing currents, and wave action, so conditions can turn demanding depending on timing. Angelfish, damselfish, unicornfish, and manta rays have also been reported around the reef.

Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.

• Tryon's HypselodorisHypselodoris tryoniReported here · unconfirmed
• Blue DragonPteraeolidia semperiReported here · unconfirmed
• Batangas HalgerdaHalgerda batangasReported here · unconfirmed
• Anna's ChromodorisChromodoris annaeReported here · unconfirmed
• Coconut OctopusAmphioctopus marginatusReported here · unconfirmed
• Slender ceratosoma nudibranchCeratosoma gracillimumReported here · unconfirmed
• Ocellate PhyllidiaPhyllidia ocellataReported here · unconfirmed
• Painted FrogfishAntennarius pictusReported here · unconfirmed
• Broadclub CuttlefishAscarosepion latimanusReported here · unconfirmed
• Many-lobed CeratosomaCeratosoma tenueReported here · unconfirmed
• Manta rayManta rayReported here · unconfirmed
• AngelfishAngelfishReported here · unconfirmed
• DamselfishDamselfishReported here · unconfirmed
• UnicornfishUnicornfishReported here · unconfirmed
• Banggai CardinalfishPterapogon kauderniObserved near here · iNaturalist