How I agree with Nick Lewry (Flagging up messy issue in parks, Thursday, Feb 26).

During half term on a beautiful sunny day I took my grandchildren from Ovingdean to Brighton Marina on the undercliff walk.

They each had a small bag to collect shells. However this was ruined by irresponsible dog owners leaving dog mess everywhere.

There was a sign saying dogs were not allowed on the beach between May and September.

Well, they certainly make up for it in the winter months.

Two very responsible dog walkers spoke to us and said that it is this that gives them all a bad name. Mr Lewry would have had a field day with his pink flags.

G Patrick
Bernard Road
Brighton