whnt - low tide ; 28th September 2019 (16:54)

A very wide expanse of sand (& some mud) in the outer harbour at Whitehaven.
Low tide just about as low as it gets on the Autumn "spring tides" ... [tide table ...] - if you look very carefully at the far side of the harbour, you can just see the line of the deep water channel leading to the sea lock.

The clouds and hills in the distance are in Scotland, the far shore of the Solway Firth.