The sea was rippling in shining folds, but debris from past wild nights and high tides was plentiful with shingle piled and overflowing weathered wooden groynes
We talk of flotsam and jetsam - the OED says that in 1697 "flotsam" was defined as
signifying any goods that by shipwrecke be lost, and lie floting or swimming vpon the toppe of the water.
so, perhaps Jetsam - again from the OED seen as early as 1491, but this from 1678
Jetson or Jetsam, that which being cast over board in a time of Shipwrack, is found lying on the shore, and so belongs to the Lord,
I think the Lord wouldn't want to bother with this lot, but it has a certain abandoned grace of its own
and some, in it's fragile lacyness echoed the waves on the sunshiney shore
Beachy Head, as ever, calm on the horizon