GLASWEGIANS are being challenged to take part an in the world’s toughest adventure swim.

As part of Red Bull Neptune Steps, competitors will be tested on their speed, strength and resolve.

Applications are now open for the open-water adventure race ahead of its return in March 2018.

The event is open to 600 participants who will be challenged to swim 420 metres uphill in the Forth & Clyde canal and climb 18 metres over seven canal lock gates helped by rope climbs, wooden ladders, cargo nets and climbing walls.

Since launching in 2015, the event has welcomed athletes from a wide range of sporting disciplines to compete.

Olympic swimmers and top level ITU triathletes, to obstacle course racers and fitness enthusiasts have all tried their hand at the challenge.

For its fourth edition, the event is taking to the water and is open to more than double last year’s intake.

All of the 600 competitors will swim, climb and conquer as part of the race that is described as like “no other”.

The event will take place on Saturday March 10 2018 at Maryhill Locks in Glasgow. Entries are now open at