Thank you for the welcome and for replying, Jonzjob. We are in the Corbieres region. The wall is in fact all the way round, but the wind whips over the top and down the side of the house to the main bit of the (small ) garden. The Marin can be a pest, but it comes over the main bit of the garden and is broken up by some trees a bit. We have toyed with the idea of a gate between the front and back garden though.