A guide to St Nectan's Glen waterfall and the Rocky Valley walk, between Boscastle and Tintagel.
Hidden in a wooded valley between Boscastle and Tintagel, St Nectan's Glen is one of the most magical places in North Cornwall. A woodland path follows a stream to a waterfall that plunges through a hole in the rock into a deep pool. Nearby, Rocky Valley runs down to the sea past ruined mills and ancient rock carvings. Both are a short drive from our campsite.
Where are they?
St Nectan's Glen and Rocky Valley are near Trethevy, on the B3263 between Boscastle and Tintagel. From Lower Pennycrocker Farm, it's a short drive through Boscastle.
St Nectan's Glen
The walk
From the roadside near Trethevy, a footpath leads through ancient woodland alongside the Trevillet River. The walk to the waterfall takes around 20 to 30 minutes each way and is uneven, with steps and muddy patches, so wear good shoes. There are other routes in, including from Trethevy.
The waterfall
The highlight is the waterfall, which drops around 60 feet through a natural hole in the rock, called a kieve, before tumbling into a pool below. It's a beautiful and atmospheric spot, especially after rain.
Entry
The waterfall itself is on private land, and there is an entry charge. Check opening times and prices before you go, as these can change.
Legend and spirituality
The glen is named after St Nectan, a Celtic saint said to have lived here. Many visitors find it a peaceful, spiritual place. You'll see ribbons and small offerings left by visitors. Please be respectful and leave nothing that could harm the environment.
Rocky Valley
The walk
Rocky Valley is a short, dramatic valley that runs from the B3263 near Trethevy down to the sea. A path follows the stream past steep rock walls to a small cove.
The labyrinth carvings
Near the ruined mill in the valley, two small labyrinth patterns are carved into the rock. Their age is debated, but they are a fascinating sight.
Joining the coast path
At the sea, the Rocky Valley path meets the South West Coast Path. You can return the same way or walk the coast path towards Tintagel or Boscastle. See our Boscastle to Tintagel walk.
Combining the two
Many visitors combine St Nectan's Glen and Rocky Valley in a half day. Allow two to three hours for both, plus time at the waterfall.
Parking
Parking near Trethevy is limited. There's a small car park and some roadside spaces. Go early in summer. Please don't block lanes or gateways.
Tips
- Wear good shoes: paths are uneven and can be muddy.
- Visit after rain: the waterfall is at its best.
- Bring cash or a card: for entry.
- Go early or late: for a quieter visit.
- Keep dogs on leads: paths can be narrow and steep. Check the glen's dog policy before you go.
Nearby
- Tintagel: about two miles further on, with its castle and village. See our Tintagel page.
- Bossiney Haven: a hidden cove. See our Bossiney Haven guide.
- Boscastle: with its harbour and cafés. See our Boscastle harbour guide.
Accessibility
The paths in both valleys are rough, steep in places, and not suitable for wheelchairs or pushchairs. Use a baby carrier for little ones.
Who was St Nectan?
St Nectan was a Celtic holy man, one of many early saints linked with Cornwall and Devon. Stories say he lived as a hermit by the waterfall, and that he rang a silver bell to warn ships off the rocks. Like many saints' legends, the details are hard to prove, but they add to the sense of a special place.
Photography tips
The glen can be dark under the trees, so a camera or phone with a good low-light mode helps. For the waterfall, a slow shutter speed gives that silky water effect. Protect your camera from spray, which can be heavy after rain. Early morning light in Rocky Valley can be beautiful.
A half-day plan
Start mid-morning with the woodland walk to St Nectan's Glen, then return to Trethevy and walk down Rocky Valley to the sea. Have lunch in Tintagel or Boscastle afterwards.
Weather
Both valleys are sheltered, making them a good choice on a windy day when the clifftops are exposed. After heavy rain, paths will be muddy and the stream lively, so take extra care on steps and rocks.
Staying nearby
Our farm campsite is a short drive from both valleys, about two miles from Boscastle. Adults are £10 per night and children 5 and over are £5. See walks near Boscastle for more ideas.
Frequently asked questions
How long is the walk to St Nectan's Glen?
Around 20 to 30 minutes each way through woodland, on uneven paths.
Is there a charge to see the waterfall?
Yes. The waterfall is on private land, with an entry charge. Check before you go.
What are the Rocky Valley carvings?
Two small labyrinth patterns carved into the rock near a ruined mill. Their age is debated.
Can I walk to St Nectan's Glen from Boscastle?
Yes, via the coast path and Rocky Valley, but it's a longer walk. Many visitors drive to Trethevy.
Stay near Boscastle
Lower Pennycrocker Farm is a quiet, family-run campsite at St Juliot, about two miles from Boscastle (PL35 0BY). We welcome tents, touring caravans, motorhomes and campervans from 1 April to 31 October. Adults are £10 a night, children aged 5 and over £5, electric hook-up £7 and dogs £2 each (maximum two). Showers are free and you park beside your pitch. Check availability and book direct, or see pitches and prices.
Planning a trip for two? Our page on camping for couples in Cornwall explains why our quiet farm near Boscastle suits a slower break.
