A huge volume of driftwood washes up on the estuary shores. People gather driftwood for firewood and for other purposes. Here someone was doing it on quite an organised scale and had made a little camp! There is discussion online about how it might not be that good to burn driftwwod, because of the salts and chemicals it might have absorbed from the sea.
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Jump to the place marker on the SES map here
The Severn Estuary Survey (SES) 