Brora's are single strand about 15" off the ground, for access they simply have a couple of sections of rubber hose pipe covering the live fence you simply step over.
Its about knee high on me and a single strand, and as Kenny says they have a bit of rubber hose on a section each side of the green.
Was speaking to a mate thats a member there last night and he said the sheep can be a nuisance in the bunkers. when its windy they shelter in them and don't always use the easiest exit... after all they are stupid.. a bit like the cows