Lihou causeway

Lihou Island lies off Guernsey's west coast. It is connected to L'Erée headland (seen here with Fort Saumarez) via a causeway accessible at (very) low tide. It is essential to observe the causeway opening times to avoid getting stranded on Lihou, because once the water gets ankle high it is too dangerous to cross.

View from L'Èrée towards Lihou

Life in the tide zone: orange- breadcrumb sponge (halichondria panicea) / dark red jelly blobs- beadlet anemone (actinia equina).
The mauve stuff is an encrusting seaweed of the lithophyllum or lithothamnium species.