Bright-line Brown-eye Moth caterpillar

There’s a green caterpillar on the sand of The Ouse. It’s got a bright yellow line along its side and tiny black spots. It’s heading out to sea. I pick it up and photograph it.

My friend identifies it as the Bright-line Brown-eye Moth Lacanobia oleracea. I put it back down and it continues heading out to sea. There really is no helping some people.