Sewri Mudflats and Flamingo Point

The Sewri mudflats form one of the most improbable wildlife spectacles in any Indian city, a broad expanse of intertidal mud on the eastern harbour where tens of thousands of lesser flamingos, joined by smaller numbers of greater flamingos, arrive between roughly November and April. Drawn by the blue-green algae and crustaceans that thrive in the nutrient-rich mud, the birds turn the flats pink at low tide against a backdrop of oil terminals, container cranes and the piers of the Mumbai Trans Harbour Link. The flats are part of the Thane Creek Flamingo Sanctuary notified in 2015, and the Bombay Natural History Society has run flamingo watching seasons here for decades, with volunteers setting up spotting scopes at the Sewri jetty. Behind the shoreline stands Sewri Fort, a squat stone watchtower built by the British East India Company around 1680 on a low hillock, captured briefly by the Portuguese in 1689 and long left to decay; access to the fort has been restricted during recent conservation work, so visitors should confirm its status before relying on the ramparts as a viewing platform. Timing is everything at Sewri: the birds feed on the exposed mud as the tide falls and disperse when it rises, so a visit planned around the tide table two to three hours either side of low water is essential. Early morning offers the best light and the least industrial haze, and binoculars transform the experience, as the flocks often stay several hundred metres out.