Catalan to English Marketing Construction / Civil Engineering

Aqui el context:

"Situado en un marco rural defendido por parets seques y envuelto por el mar cristalino de la consta sur de Menorca."

This is from a text selling houses in Minorca; I'm actually translating from a jpeg. The photo shows short cobbled walls surrounding and separating the houses, but I'm not sure that's what it's referring to.

Thanks for any help!