Large piece of Potamogeton washed up on the lake shore.
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Goodness John, you do pick the most obscure things in obscure (but lovely) places!
Again I am not qualified (but may come back) to give relevant input. BUT, I must say, you are holding to the iSpot ethic well.
Excellent picture sequence and loads of descriptive words.
Lat/Lng: 53.2093, -3.951
OS grid ref: SH698698