Endurance challenge · 2024

Dartmoor Prison Break

Princetown to Liskeard: 30 miles across Devon and Cornwall, with unexpected detours, testing roads and a finish as dusk settled.

StartHMP Dartmoor
FinishLiskeard
Distance30 miles
Time12 noon–9:30pm

Hike at a glance

Distance
30 miles
Time
Approximately 9½ hours
Route
Princetown, Tavistock, Gunnislake, Callington, Merrymeet, Menheniot and Liskeard
Weather
Dry with warm sunshine
Difficulty
Very hard — a long-distance challenge with sustained road walking, hills and a difficult final section in fading light.
Tea/food stops
Tavistock and Callington
The escape story

From prison gates to Cornwall

Over 100 “prisoners” set out to cover the greatest possible straight-line distance within the allotted time.

Setting off towards Tavistock

At exactly noon, the air outside Dartmoor Prison filled with bells, whistles and sirens. More than 100 prisoners, myself included, surged forward. The goal was simple: travel as far as possible from the prison gates within the set time while navigating the varied terrain of Devon and Cornwall.

I turned right towards Tavistock, crossing open moorland and passing the silent, abandoned Merrivale Quarry. Rough ground and road eventually gave way to enclosed country lanes, which led downhill into Tavistock. I arrived at around 1:45pm and paused briefly for a bite to eat and a coffee.

Crossing into Cornwall at Gunnislake

Leaving Tavistock, I continued to Gunnislake. At 3:40pm I crossed the River Tamar and entered Cornwall—without needing a passport. The landscape shifted to rolling hills and narrow, hedge-lined roads. Much of the route was on tarmac, but the lack of pavements meant staying alert for passing traffic.

Callington and a well-earned break

By 5:20pm I had reached Callington. Hunger had set in, so sausage and chips with a latte provided a very welcome meal. After a 30-minute rest, I set off towards Liskeard as the sun began to lower over the countryside.

The nerve-wracking road to Liskeard

The stretch beyond Callington proved the most challenging. The main road was narrow, with sharp bends, no pavement and heavy goods vehicles passing uncomfortably close. I chose the safer back roads through Merrymeet, but the detour added around five miles. The winding route continued through Menheniot and several small villages, with every hill adding to the fatigue as daylight faded.

Final stretch to Liskeard

As dusk settled, Liskeard finally appeared in the distance. The last section crossed fields and followed country paths, with several gates to climb. At 9:25pm I reached Morrisons supermarket, tired but satisfied after 30 miles.

Reflections on the journey

This escape was more than a physical challenge. From the open moor near Merrivale to the testing roads beyond Callington, every section demanded endurance, navigation and caution. It was an absorbing journey through two counties and a memorable test of determination.

The route

Princetown to Liskeard

PrincetownNoon start outside HMP Dartmoor
Tavistock1:45pm food and coffee
Gunnislake3:40pm crossing into Cornwall
Callington5:20pm meal and 30-minute rest
Merrymeet & MenheniotSafer back-road detour
Liskeard9:25pm finish at Morrisons
Challenge complete

Thirty miles from the prison gates

Dry, warm sunshine helped during the day, but the distance, traffic and added detour made this a demanding escape. Reaching Liskeard after nine and a half hours was a satisfying finish to a day full of twists.

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Location & getting there

Princetown, Devon, to Liskeard, Cornwall

Find HMP Dartmoor, Princetown on a map

This map locates the place named above; use the report’s route links to follow the walk.