The mouth of the Santubong River is a promising spot to see the rare Irrawaddy dolphin. With a rounded snout rather than a beak, these marine mammals live in brackish coastal waters and river deltas, as well as in fresh water further upriver – for example, along the Mekong in Indochina, where the population is dwindling. In fact the dolphin is considered vulnerable in many habitats due to human activity – they may get snared in nets or see their range whittled away by barrages, for example.

Several tour operators can take you on dolphin-spotting cruises, though the specialist is CPH Travel, which has its own launch.

Travel offers; book through Rough Guides

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