Underground.Adventure.Anywhere.
We bring the adventure to you
The Trailer Cave is a road-legal, fully sculpted artificial cave system. Sumps, boulder fields, a chamber and a bedding plane — real caving, brought to your car park.
Official manufacturers of the original mobile artificial caving system.Designed, built and hand-finished in the UK since 2011.
Not an inflatable.A cave.
Commissioned in 2011 and tested covertly across two years of live events, The Trailer Cave condenses a full caving adventure into 30 linear metres of sculpted rock. Every caver gets a helmet and head torch, a short brief, then they are sent off to find their own way through.
It is tight in the right places and open in others. People come out muddy-kneed, wide-eyed and straight back into the queue.
Four distinct passages
The Sump
A low, tight duck under a rock lip — the moment most cavers decide they're braver than they thought.
Boulder Field
Uneven, three-dimensional ground that forces route choice rather than a straight crawl.
The Chamber
The passage opens out. Room to kneel, turn a head torch upward and see the formations.
Bedding Plane
A long horizontal squeeze between two rock beds — the real thing, faithfully reproduced.
Modular by design
The passage is built as linked modules within the trailer shell, with multiple exit points so any caver can be reached in seconds. It opens out for operation and packs back down for the road in minutes.
See the specification
Before you go in
Yes. It is suitable for adults and children, and realistic in dimension as well as feature — a fantastic way to explore caving in a secure, controlled environment.
The main passageway allows a caver of 6'4" tall, 44" chest, 20" shoulders and 42" waist. Just like a real cave, it will not be suitable for everybody.
The trailer measures 7m long by 2m wide. We recommend an operational area of 10m x 6m, allowing for safety matting at each exit point and crowd control if needed.
Between 120 and 150 participants per hour, depending on group age and briefing style. One trained staff member can run the system.
Every caver is issued a helmet and head torch and given a short brief before entry. Multiple exit points mean anyone can be reached quickly, and safety matting is laid at each exit.
Yes. Systems are built to order by The Trailer Cave Limited in the UK, delivered free and handed over with full onsite training by a senior team member.
Plan your next cave with us
Tell us what you have in mind — a standard system, a bespoke layout, or a hire for your event. We'll come back with options, lead times and next steps.
Plan your next cave with us
Tell us where the cave would live and how you plan to use it. We'll come back with pricing, lead time and a plan.