Like a bit of running to keep in shape? On 25 March you can join tens of thousands of locals for a run beneath Stockholm, using the newly built Citybanan tunnel.
You won’t have to worry about trains as you’ll be using the paved service tunnel that runs parallel to the Stockholm Metro, tackling challenging ascents and descents along the way.
Starting at the famous Karolinska Institute, the Tunnel Run course dips underground, snaking through 6km of the Citybanan tunnel before emerging into sunlight (or rain!) and cheering crowds for the final approach towards the finish in Södermalm.
With an expected 40,000 participants, it’s worth reserving a spot early to ensure a place on the starting line for this unique subterranean 8km (5 mile) race. Tickets are cheaper if you book early, too!