Ice Age glaciers and longshore drift have contributed a variety of pebbles to the beach at the northern, landward, end of the spit at Spurn which stretches almost three miles out across the mouth of the Humber Estuary.
Despite previous attempts to protect the spit, high tides now wash over it in places.
Marram grass, Ammophila arenia, stabalises the shifting sands of the dunes.
I was surprised to see a single patch of bluebells, Hyacinthoides non-scripta, growing amongst the marram to the west of the track not far from the area known at The Warren.
Washed up on the beach, a velvet swimming crab, Necora puber, with blue markings on its pincers, legs and shell.
Hornwrack, Flustra foliacea, not a seaweed but a colonial animal. Individual ‘sea moss’ filter-feeding animals called zooids lived in tiny cells that you can see as the stippled surface texture of the fronds.