For a good day out Take food & drink.
Pick a time when the tide is low.
Walk down the valley examining the remains on both sides of the stream, go underground if you want.
Find the head of the incline down to the sea and try to picture the pier that existed here.
Walk (scramble, fall) down the incline to the rocks below.
Rocks are now the size of houses! go right onto the beach, chill out and enjoy. Then climb the wooden steps back up to the valley.