Classic black-sand slopes where mimic and wunderpus octopus headline the critter list.
TK and Aer Prang are two black sand sites often dived back to back, and they are far less alike than the pairing suggests. TK is short for Teluk Kembahu, meaning Kembahu Bay, after the village on the shore, and it is split into TK1, TK2 and TK3 along the same stretch. The slope at TK3 starts at around five metres and runs down to about 22, with patches of rope sponge and small coral heads in the shallows and a species list past 200. This is the octopus site: one resort names it as one of the best in the strait for octopus species and for the rare Ambon scorpionfish, and the mimic octopus was first observed in Lembeh here. It has been recorded imitating flounder, mantis shrimp, sea snake and jellyfish, and a National Geographic crew spent time filming mimics at TK3 for a series on octopus.
Aer Prang is a different proposition, and the operators are unusually honest about it. The name comes from a freshwater jetty the Japanese built during the Second World War, fed from an aquifer uphill, and the site runs as three sub sites either side of it, sloping to around 25 metres. It is a broad, spread out sand slope with relatively low critter density by day, and fewer divers come here in daylight than at the muck sites to the north.
What Aer Prang is genuinely good for is the dark. It is one of the better night dives on the strait, particularly for octopus and for the bobbit worm, plus bobtail squid and large red and white nudibranchs that bury themselves in the sand by day and come out after sunset.
如何到达
Both sites are in the Lembeh Strait off Bitung, reached by flying into Manado (MDC), driving to Bitung, then crossing by resort boat. The drive is faster than most dive operator pages still say: the Manado to Bitung toll road was completed in February 2022, cutting it to roughly 40 minutes, so allow around 45 minutes to an hour in total. From one resort on the strait, TK3 is about 12 minutes by boat and Aer Prang about seven. Both are run as guided dives and both appear in standard rotations, with Aer Prang more often scheduled as a night dive than a day dive. No Lembeh Strait conservation or user fee could be verified for 2025 or 2026 from operator rate pages or Indonesian language sources.
最佳时节
Critters are present all year and the resorts say plainly they are not seasonal. The variable is the surface: roughly January to June brings more rain but flatter, less windy water, while July to December is drier topside and choppier. For Aer Prang specifically, time of day matters more than time of year, since it is a much better dive after dark than in daylight. Water is around 26 to 29 degrees throughout.
实用贴士
Trust your guide on the octopus at TK. Mimic and wunderpus vanish into their holes at the first clumsy approach, so hang back, let the spotter position the group, and do not crowd the animal for a photograph. Keep your fins high off the bottom, because fine black sand clouds instantly and stays clouded. Carry a torch even by day for burrows, and a proper primary plus a backup if you are doing Aer Prang at night. Watch where you settle: waspfish and stonefish lie buried in the open sand. If you only have one slot at Aer Prang, take the night dive rather than the day dive.
Teluk Kembahu, meaning Kembahu Bay, after the village on the shore. The sites are numbered TK1, TK2 and TK3 along the same stretch of slope. One source glosses the initials as Tanjung Kusu Kusu, which is a different Lembeh site being confused with this one.
Octopus. One resort names TK3 as one of the best sites in the strait for octopus species and for the rare Ambon scorpionfish, and the mimic octopus was first observed in Lembeh here. Coconut octopus, wunderpus, frogfish, sea moths and ribbon eels also feature.
Aer Prang is a broader, more spread out sand slope with noticeably lower critter density by day, which its own operators acknowledge. Its strength is night diving, particularly for octopus and bobbit worms, plus bobtail squid and nudibranchs that bury themselves during daylight.
From a freshwater jetty built by the Japanese during the Second World War, supplied from an aquifer uphill. The site is split into three sub sites, to the left of the jetty, in front of it and to the right.
TK is shallow, gently sloping and manageable for newly qualified divers with a guide, starting at around five metres. Aer Prang is better suited to divers who already know what they want to find, since one resort describes it as low density by day and best after dark.
把它加入一条横跨印尼的路线，我们会算出每一站之间的交通时间与费用。
定制你的行程
