Explorers squeeze down tiny hole and descend 150ft into secret underground tunnels; 'Once underground we found a maze of tunnels, there was a heavy laying mist which gave it a super eerie feel'.
A group of explorers have unearthed a spooky underground world deep beneath the soil of Wirral.
Eerie footage taken by a travel vlogger captures the haunting underground world - understood to have formerly been used asWW2 air raid shelters.
In the video the group, who name themselves'Exploring with Fighters' can be seen entering the tunnels by a very small hole in the floor.
The hole, which the group haven't disclosed the exact location of, is found by the group entering bushes by torchlight.
Once in the woodland the group come across a fallen tree and next to it what would appear to an normal passerby a strewn piece piece of wood.
However, underneath the wooden board is a traffic cone, which pointed down into the earthy hole, conceals the entrance to the 'old school nuclear bunker'.
The group then, one by one, squeeze themselves down the hole and film themselves climbing down a metal ladder.
Is this the creepiest tunnel in Merseyside? Eerie footage captures abandoned fairground rides and clowns
Once at the bottom the camerman shows a cave like opening which leads to yet more rusty ladders, which take the group 150ft underground.
The graffiti scrawled walls of the tunnels can be seen in the video and lots of strewn rubble and bricks.
In the video of the explorers tells watchers: "It is extremely rare that we are down here - these tunnels most people don't even know exist and they just go on and on and on."
The tunnels under Tranmere are understood to stretch to a total length of 6,500ft and they were designed to house up to 6,000 people, many of them workers.
And the cameraman can be seen shining a torch down the tunnel which one of the urban explorers says "go on for miles and miles".
After the threat of nuclear attack diminished, the tunnels were later used by government departments for storage, and were considered as a nuclear fallout shelter during the Cold War era.
The tunnels were finally sealed off in 1989 amid growing health and safety concerns but were re-opened for a period in 2015.
While walking down the eerie tunnels the group tell watchers that they have been attempting to find the secret hideout for months.
One of the group said: "We have spent night after night trying to find the entrance to this tunnel.
"All of them were sealed up... but just by chance we are in."
In the footage the team can be seen trying to mark out where they are, in order to be able to get back safely above ground.
Inside Tranmere WWII bunker
At another turning and down another tunnel the group find a discarded bike and a dozens of toilet cubicles, which would have been used for those staying underground.
Speaking to theafter the exploration Exploring with Fighters said: "We heard a rumour there was a small opening in the floor somewhere in Wirral that would take us to the old air raid tunnels.
"Sure enough it was there and we soon got down the tight opening and headed around 150ft underground.
"Once underground we found a maze of tunnels, there was a heavy laying mist which gave it a super eerie feel.
"We found old war time artifacts along with old stolen bikes.
"It truly was amazing walking through the history and imagining what it could have been like down there in the war times."
To see the full video taken by Exploring with Fighters click here.
Credit: Exploring with Fighters
The tunnel entrance opening was a very tight hole in the ground, located under a wooden board
Credit: Exploring with Fighters
The explorers found this opening in woodland which leads down underground to old WW2 air raid shelters