Glastonbury, Somerset Celebrated in folklore and ancient traditions since the dawn of time, the summer solstice on 20 June is when the sun is at its highest, making it the longest day of the year. Midsummer refers to the days around the solstice period. Enjoy sunrise with the druids at Glastonbury Tor, renowned as one of the most spiritual sites in the UK, with stunning views across the countryside.

Known as the Isle of Avalon, it’s also where King Arthur is said to have retired after his last battle. Legend has it that beneath the hill on which the Tor is built, there’s a hidden cave through which you can pass into the fairy realm of Annwn. Enjoy a unique stay in a “tree tent” at Pennard Hill Farm, strung between two trees and overlooking the gorgeous Mendip Hills.

From £165 in peak season; pennardhillfarm.co.uk Orkney View image in fullscreen Photograph: Cavan Images/Getty Images Orkney is an enchanting place to visit before or after solstice, with the longest days in the British Isles anda sky that never really gets dark.

Celebrate the “grimlins” (the local word for midsummer, from the Old Norse word “grimla”, meaning to twinkle or glimmer) at the St Magnus International festival ( stmagnusfestival.com , 21-29 June). Running since the 70s, it’s a week-long celebration of the arts including music, theatre, dance, and literature in a stunning natural setting.

Stay at the lovely Peedie Harray’s, Harray’s Hoose and Harray’s Little Bothy. Double rooms f.