Hiking through the northern Highlands, staying in free bothies like Choire Mhoir and Magoo’s, offers an enchanting adventure topped by the rare sight of a fogbow. For bike enthusiasts visiting Scotland in May, pedaling around Orkney to explore its ancient neolithic sites is an unforgettable journey. The cool temperatures mean pack layers for your exploration; it's May in Scotland, after all, with gentle rain possible and highs around +5°C.