A nature reserve in Carlisle is inviting people to team up and test their fitness, navigation and bravery for a spooky challenge this Halloween.

Watchtree Nature Reserve is calling on people to join in with it's Watchtree Halloween Challenge on October 30 at 6.30pm, which involves teams of two to six people to collect as many checkpoints as possible in 45 minutes.

Teams will set off outside the visitors' centre to search for the hidden checkpoints - some of which will be guarded by fearsome ghouls.

There is no specific route and teams with the most points at the end of the challenge wins.

There will be considerable point penalties if a team arrives back at the start point early or late.

Fancy dress is encouraged.

For more information on how to take part, visit Watchtree Nature Reserve's Facebook page at www.facebook.com/watchtree.