Somerset Coast

The Somerset Coast faces the Bristol Channel — among the world's largest tidal ranges — and bears the full consequence. The channel's funnel geometry amplifies the Atlantic tidal wave as it travels east: at Burnham-on-Sea, spring range reaches 12.0 m; at Watchet, 11.0 m; at Minehead, 9.0 m. These are not extremes — they are mean spring ranges, repeated every fortnight. The beach at Burnham retreats more than 2 km at low water, and the returning flood advances faster than walking pace in the final third of the cycle. Official Somerset Council guidance puts the tide's maximum advance speed at 16 km/h across the flat sand. Visitors must commit to the tide timetable. The River Parrett carries a tidal bore on spring floods. At Watchet the harbour dries completely; boats sit on their legs. The exposed flats are important estuarine bird habitat and offer exceptional bass and flatfish fishing on the incoming tide.