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Navigation map of the southern part of the South China Sea, including the straits of Malacca and Singapore, and the Riau Archipelago. Bathymetry (sea depth), lighthouses, shoals and other obstructions are marked, with hills to use as landmarks.

Map of Singapore Island, including the surrounding islands and straits, and southern Johor. Lighthouses are marked in red and yellow, including Horsburgh Lighthouse on Pedra Branca, Raffles Lighthouse and Fort Canning Lighthouse.