UK town with Britain’s only underground golf course and the world’s deepest hotel

Published on July 07, 2025 at 01:59 PM

KNOWN as the ‘slate capital of the world’, a small UK town is home to some rather unusual underground attractions.

Blanau Ffestiniog, located in north , has a long history of slate mining after becoming a major production hub in the 19th century.

High street in Blaenau Ffestiniog, Wales.
Blanau Ffestiniog, located in north Wales, has a long history of slate mining
A child plays mini golf in an underground course.
The town is home to Britain’s only underground golf course
Old disused winding gear at a slate quarry.
The golf course is located 500ft below ground and is kept at a temperature between six and eight degrees Celsius

Yet despite being known for grey rock, the town itself is home to some vibrant venues.

One such destination is Britain’s only underground

Across four floors, guests get to play an 18-hole golf course with neon lights illuminating the surrounding rock.

You will want to take a jumper though – as the course is kept between six and eight degrees Celsius year-round.

Included in the experience is also a ride on Europe’s steepest which players must hop on to reach the course.

Rather randomly, you can then finish off the experience with a

Underground golf sessions cost from £20 per person and can be found at Zip World Llechwedd – which is also home to a number of underground mine tours and an underground trampoline attraction.

If you want to extend your stay in this unusual and historic town, there is also the world’s deepest

Opening back in 2023, Deep Sleep is located in an abandoned Victorian slate mine, 1,375feet below the mountains of Snowdonia.

The accommodation has four twin-bed cabins and a slightly more luxury option.

Yet, this is not your normal check-in and stay destination.

is an experience that runs once a week at the weekend.

Essentially an extreme immersive experience, those wanting to stay underground overnight will need to venture on a 45-minute walk into the before entering a cottage, kitting up and descending to the belly of the mine.

On the way down, visitors get to see old miners’ stairs, bridges that are disintegrating and dramatic rock formations.

Bedroom in a cave.
Also near the town is Deep Sleep – an obscure overnight stay 1,375feet below the mountains of Snowdonia
Wooden cabins lit at night in a mine.
But you will have to trek 45-minutes to get there

After the downward hike, guests will have a warm drink and an expedition-style meal before nodding off into a deep sleep, deep below the earth’s surface.

And there are no lie-ins in the morning for guests, as you need to get up at 8am for a breakfast, before heading the ascent up to the surface for 10-10:30am.

Whilst a bit chilly, Deep Sleep is actually kept warmer than the underground golf course at 10C all year-round.

Staying in one of thewill set you back £399 for two people, whereas the grotto is a bit pricier at £599 for two people.

Back in Blaenau Ffestiniog itself and the surrounding area, visitors have a number of to venture on.

Steam train arriving at a railway station.
The town also has a historic railway which takes passengers past slate heaps and waterfalls

Amazing sites such as Cwmorthin Waterfall can be visited – which one recent visitor described as “such a beautiful place to unwind”;.

Or you could jump onboard the world’s oldest narrow gauge the Ffestiniog Railway.

Over 13-and-a-half miles, passengers get to see the harbour in Portmadog, as well as the slate heaps in Blaenau Ffestiniog.

Along the high street there are a number of cafes, and independent shops too – in case you fancy a browse, nibble and tipple.

Elsewhere in Wales, there is a and features a huge sandy beach where you can spot porpoises.

And another is set to get a £140k redevelopment.

Street scene in Blaenau Ffestiniog, Wales, with shops and slate mines in the background.
On the high street, there are a number of independent shops, cafes and pubs worth exploring too

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