Good call on Arran & delaying Aberdeenshire to be a seperate trip!

Only 'did' Kilmartin very quickly & Arran fairly superficially so have no recommendations other than the obvious ones. Couldn't find Machrie Burn/Moor in the forestry but I see Greywether's posted a pic that might be helpful http://www.themodernantiquarian.com/post/37202/machrie_farm.html

Edit: Oh, just remembered - I'd recommend the Giant's Graves on Arran tht you just MIGHT otherwise not bother with - cool site with nice views back as you walk up.

love

Moth