Got it!

We arrived in Newlyn in rain and wind, then later it brightened up and, by the time we walked down to the sea, it was sunny and warm.

The sea was still a bit rough though and Coopers loved jumping through the waves. Later, as we walked back along the promenade, the ball rolled into the sea. Oh dear! Non-deterred, Coopers ran down to the sea, nimbly negotiated the stony beach, found the ball and returned triumphant. Impressive!