I spent many a night at Durness youth hostel (usually kipping on the floor) in my misspent youth. Dunno whether it would still be there but there was a craft village at Balnakeil which was very hippyfied in those days. I know the Faraid Peninsula and passed many a happy hour studying its flora. The Primula scotica was a special delight, right at the tip of the headland, and we watched porpoises from a cliff top that had frog orchids growing at our feet. I also sought out the places with Durness limestone (thus misnamed, I'm informed) outcrops as they had special assemblages of calcicolous plants, including the rare dark red helleborine and lots of mountain avens. But quite possibly my numero uno location was the Smoo Cave Hotel, in which I quaffed many a pint and famously teamed up with a bloke from Yorkshire in order to beat the locals at darts.