31. Find the red rock pool at Virkie
Known simply as the Red Rock Pool, this pool in Virkie is said to turn its distinctive bright red during the summer months because of sea algae decomposing. Like many of Shetland’s spectacular sights, it’s not signposted, and takes a bit of finding. From the Ness Boating Club, just north of Sumburgh Airport, follow the coast north for around half an hour, taking care to avoid Arctic Tern nesting sites in the summer. Near the Millburn Geo, where there are a series of abandoned stone mill houses on the hill, the red rock pool sits just by an arch in the black volcanic rock. Just beware the sulphurous smell – the price of a great Instagram shot.