Cheeky competition goers at Glastonbury have lengthy tried to scale over safety fences to nip in free of charge.

But the inventive digging of underground tunnels has been uncovered by competition bosses on the web site in Wiltshire.

Headline acts this yr embrace Arctic Monkeys, Guns 'n' Roses and Sir Elton John acting on the Pyramid Stage.

Not surprisingly, given the ticket price and the demand for the sell-out tickets, the location is surrounded by a powerful fence.

Sunbelt Rental describes it on its web site as standing 4.12m excessive and seven.8km lengthy, it has distinctive high-security options together with an hooked up exterior roadway to forestall tunnelling, 45 diploma overhangs to forestall climbing and nil nuts and bolts "to stop the fence being tampered with."

A safety guard informed the Times: "It's wild. We've had to chase people down who bolted through the gates with their bags on, and some use grappling hooks to pull panels off the wall and climb over, like Batman."

Others are extra inventive.

Another safety employee mentioned: "[They] come under the wall, it's like the Great Escape but in reverse."