Top zone of the shore
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Good post showing the swollen reproductive tips to the fronds.
Did you go out on the tractor?
It was just after high tide when we got there, but I walked out later when it was near low tide to get a good selection of seaweeds down the beach.
It brought back strong memories of my A level biology field trip in 1981....
Lat/Lng: 50.2785, -3.9013
OS grid ref: SX646437