53° 04′ N · 4° 05′ W · From 1,085 metres on Yr Wyddfa to the Tryweryn · Ground 33
The quarry is 370 metres deep.
You cross it at 100 miles an hour.
North Wales turned its slate industry into adventure grounds: the world's fastest zipline hangs over Penrhyn Quarry, under Blaenau Ffestiniog you bounce on nets in caverns, and at Llangollen you paddle a canoe 39 metres above the Dee. Add the highest mountain in Wales with its rack railway, cliff jumps on Anglesey and Britain's oldest rafting. Five stops, ordered by height, with prices from two networks.
Stop 1 · Summit · Yr Wyddfa (Snowdon), rack railway from Llanberis
1,085M · THE HIGHEST MOUNTAIN IN WALES
On foot up the Pyg Track in the dark so the sun rises over Crib Goch as you top out – or on the 1896 rack railway, four and a half miles at walking pace. At the top 1,085 metres, and on a clear day Ireland on the horizon.
The railway sells direct, the hike is bookable. Snowdon Mountain Railway is on no platform; the sunrise hike on Viator has 128 reviews at 5.0. The day tours from Manchester and Liverpool drive through the park, not up it – nearly 2,700 reviews between them.
↓ Above your pulse limit – keep falling
Face down in the harness, head first, and then the brake lets go: 1,555 metres across Britain's biggest slate quarry, 150 metres above the turquoise lake, at over 100 mph. A mile in seconds, the mountains of Eryri spinning past.
GetYourGuide only, and only eight reviews there. Zip World sells most of it direct and through voucher sites; Viator has no product. The price is about €132 – £89 at weekends with the operator, from £65 midweek.
↓ Above your pulse limit – keep falling
Stop 2 · Zipline · Zip World Penrhyn Quarry, Bethesda
150M · ABOVE THE QUARRY LAKE
Stop 3 · Canoe · Pontcysyllte Aqueduct, Llangollen
39M · ABOVE THE DEE
The canal is 3.6 metres wide, the trough is cast iron, and on the canoe side there is no railing: 307 metres of paddling, 39 metres above the river, with the view Telford built in 1805. Look over the edge and there is only air.
The most-booked thing on these grounds: 2,760 reviews on Viator, 4.96. Pulse two because the water is flat – the height does the rest. If you would rather walk, take the towpath; that one has a railing.
↓ Above your pulse limit – keep falling
In a thick wetsuit along the rocky shore, swimming, climbing, letting the surf throw you about, and at some point you are standing on an edge ten metres above the water. Nobody has to jump. Most people jump anyway.
The sport was invented in Pembrokeshire – Anglesey is the North Wales version. 43 reviews at 5.0 on Viator, two operators with eight each on GetYourGuide. The operator charges £50 direct; the networks sit above that.
↓ Above your pulse limit – keep falling
Stop 4 · Coasteering · Holy Island, Anglesey
10M · THE HIGHEST JUMP
Stop 5 · Rafting · National White Water Centre, Bala, and the River Dee, Llangollen
0M · BELOW THE DAM
The dam at Llyn Celyn releases nine cubic metres a second, and for two kilometres the Tryweryn is one continuous Grade 3 chute with no flat water. For a longer day, go to Llangollen: the Dee below the aqueduct, waves and flips.
Viator carries the water. Llangollen has over 1,600 reviews there across two products, Bala 404 – GetYourGuide manages 55 and 3. The Tryweryn runs all year thanks to the dam; the Dee needs rain.
↓ Above your pulse limit – keep falling
The slate mine at Blaenau Ffestiniog: Titan with three four-person lines side by side, over two kilometres per ride; Caverns, by Zip World's account the world's largest underground zipline course; Bounce Below, nets in a cavern twice the size of St Paul's; and the Deep Mine Tour 500 feet below ground. All on GetYourGuide, all with few reviews.
Jumps, slides, an abseil down the Prysor waterfall: the gorges of Eryri are cold, steep and, on Viator, the best-reviewed thing after the aqueduct.
A kilometre of alpine coaster through the forest, the UK's longest by Zip World's account, plus the Skyride giant swing and the Plummet trapdoor drop.
The lake below the mountain at Llanberis, guided or hired; and if you want the Dee without a raft, ride it in a tube.
| Activity | Pulse | The number | Duration | From | Reviews | Bookable online |
|---|---|---|---|---|---|---|
| Yr Wyddfa · sunrise hike | Book now → | |||||
| Yr Wyddfa · rack railway | 1/5 | 1,065 m | 2.5 h | operator | — | no – book direct |
| Velocity 2 · Penrhyn | Book now → | |||||
| Canoe · Pontcysyllte | Book now → | |||||
| Coasteering · Anglesey | Book now → | |||||
| Rafting · Dee, Llangollen | Book now → | |||||
| Rafting · Tryweryn, Bala | Book now → | |||||
| Canyoning · Eryri | Book now → | |||||
| Titan · Llechwedd | Book now → | |||||
| Bounce Below · Llechwedd | Book now → | |||||
| Fforest Coaster · Betws-y-Coed | Book now → |
Over 100 mph – Zip World calls it the fastest zipline in the world and, at 1,555 metres, the longest in Europe. Four lines side by side, face down, 150 metres above the lake in Penrhyn Quarry near Bethesda. Ages ten and up, 30 to 130 kg, 120 to 210 cm; £65 to £89 with the operator, about €132 on GetYourGuide.
Yes, and it is the most-booked adventure in North Wales: guided canoe tours from Llangollen paddle the 307 metres across the trough, 39 metres above the Dee, on the side with no railing. About two hours, open canoes for two or three, from about €59. The 1805 aqueduct has been a World Heritage Site since 2009.
A Welsh invention from 1980s Pembrokeshire: you move along the rocky coast in a wetsuit – swimming, climbing, riding the surf, jumping off cliffs. On Anglesey around Trearddur Bay there are jumps of ten metres and more; none is compulsory. About three hours, ages eight and up, everything provided.
On the Tryweryn at Bala, where Britain's first commercial rafting started in 1986: the dam at Llyn Celyn releases 9 to 12 cubic metres a second, two kilometres of Grade 3 with no flat water, nearly all year. The Dee at Llangollen is Grade 2 to 3, more family-friendly and, with over 1,600 reviews on Viator, the most-booked thing on the water.
Yes, on the Snowdon Mountain Railway from Llanberis, the UK's only public rack railway, since 1896: seven and a half kilometres to the summit station at 1,065 metres, two and a half hours return, steam or diesel. Tickets direct only, weeks ahead in summer. On foot it is three to four hours up, depending on the path.
May to September for coasteering and the canoe; the ziplines and caverns run all year, except in storms. The Tryweryn has fixed release days year-round thanks to the dam, the Dee needs rain – often too little in summer. Yr Wyddfa is crowded in July and August; the railway runs to the summit from March to October.
On Sept 25, 2026: Velocity 2 about €132, the aqueduct by canoe from €59, coasteering about €95, rafting about €75, the Yr Wyddfa sunrise hike €76; the rack railway direct only.