Knock Castle, Isle of Skye

Castle near Isle of Skye

Knock Castle Isle of Skye
Knock Castle Isle of Skye
CC BY-SA 4.0 / Nealwhitehousepiper

Knock Castle is a ruined historic site in Sleat on the Isle of Skye, Scotland, set on the eastern side of Knock Bay above the Sound of Sleat. Also known as Caisteal Uaine or Caisteal Camus, it occupies a headland that once held an Iron Age fort before a medieval keep was built here. Today the castle is mostly a shell, with broken walls and one tall window section standing above the slope.

The site matters for its layered past and its exposed coastal position. Visitors notice the rough approach, the scattered masonry, and wide views over the water and surrounding farmland. It suits people who are comfortable with a short off-road walk and want a quiet ruin rather than a developed attraction. Those looking for a polished visitor experience or easy access may prefer to skip it.

History and Significance of Knock Castle

Knock Castle occupies a site of long strategic value. Before the medieval keep existed, an Iron Age fort, Dun Thoravaig, guarded this headland. In the 1300s, the MacLeods built a tower here to secure the Sleat coastline, but by the late 15th century the MacDonalds gained control of the peninsula, capturing the castle along with surrounding lands.

In 1431, James I's forces seized Knock Castle during his campaign to assert royal power over the Lords of the Isles. For decades afterward, the stronghold passed back and forth between the MacLeods and MacDonalds as each clan fought for dominance in Sleat. The MacDonalds remodelled the castle in 1596, but its fate was sealed by the end of the 17th century: by 1689 it was abandoned, its stone eventually quarried for nearby farms and homes.

Knock Castle is also steeped in folklore. Tradition speaks of a Green Lady-or glaistig-who watches over the family tied to the castle, appearing joyful when good fortune approaches and weeping in times of sorrow. Another spirit, a gruagach, was said to care for the livestock. These stories add an otherworldly dimension to the ruin's already dramatic location.

Things to See and Do in Knock Castle

Although heavily ruined, Knock Castle still offers glimpses of its medieval form. The most notable surviving feature is a tall window section from the 15th-century keep, rising above the collapsed masonry around it. Walking the site allows you to trace the outline of the original tower and the later additions made by the MacDonalds.

Stand near the edges of the headland to take in the steep cliffs that guard three sides of the site. The views across Knock Bay and toward the Sound of Sleat are spectacular on a clear day. Visitors who enjoy ruined castles will find this a rewarding, atmospheric stop-one of the things to do in the Isle of Skye that feels far removed from the busier northern attractions.

How to Get to Knock Castle

Knock Castle lies on the east coast of Sleat, around five miles north of Armadale. The nearest major airport is Inverness Airport, which provides a convenient gateway to the Highlands before travelling on to Skye. For the best deals and a seamless booking experience, check out these flights to Isle of Skye on Booking.com.

Travellers can take the train to Mallaig and cross to Armadale by ferry. From Armadale, it is a short drive north on the A851 to reach the unmarked private road that leads toward Torabhaig Distillery. Train schedules and bookings can be found on Omio.

Driving is the most practical way to reach the site. After turning off the A851 toward Torabhaig Distillery, look for the road or trail that veers right before the distillery entrance. A small, lichen-covered picket gate marks the footpath. From here, follow the faint trail across a river until you reach the ruin.

Practical Tips on Visiting Knock Castle

  • Suggested tips: Wear sturdy footwear; the trail is faint and can be slippery, especially after rain.
  • Best time to visit: Clear days for safer footing and the best views over Knock Bay.
  • Entrance fee: Free.
  • Opening hours: Always accessible.
  • Official website: Local tourism sites offer updated walk information.
  • How long to spend: 45-90 minutes including the walk to the ruin.
  • Accessibility: Not suitable for limited mobility; terrain includes uneven ground, steep drops, and river crossings.
  • Facilities: None at the castle; facilities are available at Torabhaig Distillery or nearby villages.
  • Photography tip: Frame the surviving window against the sea or capture the ruin at sunrise for atmospheric shots.
  • Guided tours: None formally offered; visits are self-guided.
  • Nearby food options: Armadale and Isle Ornsay offer cafés and restaurants within a short drive.

Where to Stay close to Knock Castle

Sleat offers peaceful and scenic accommodation close to the ruins. Stay at Duisdale House Hotel for elegant surroundings and sea views. Another excellent option is Toravaig House Hotel, ideal for exploring the east Sleat coastline. For a guesthouse feel, consider Hotel Eilean Iarmain, set beside a picturesque harbour.

Is Knock Castle Worth Visiting?

Yes-if you enjoy forgotten ruins, clan history, and quiet coastal landscapes far from the crowds. Though only fragments remain, Knock Castle's dramatic setting, ancient origins, and haunting folklore make it one of the must-see places in the Isle of Skye for travellers looking for atmospheric, authentic history.

What Other Travellers Say...

Reviews Summary

4.5 (86)

Knock Castle, on a rural lane near Ballater AB35 5SQ, is a free-to-visit ruined castle set amid fields with Highland views; visitors describe narrow, rough, sometimes potholed access where you can park by barns or at the bottom of a hill and walk up, and warn the track and steep forest path aren't suitable for very low cars. The ruin is well preserved with sturdy walls and usable stairs, offering lovely, quiet views and wildlife encounters—visitors note livestock nearby (close any gates) and occasional bulls that may block crossing fields, so plan parking and walking accordingly.

Alex C.
4 months ago
"Not quite the castle adventure we expected – turns out it’s not an official site to visit. Still, we were greeted by some cute cows and their calves,which was a treat. Crossing the fields wasn’t an option with a bull standing guard, so we detoured up a steep forest path instead… not suitable for every car...."
Carra Straut
5 months ago
"Hidden gem! Beautiful with no one else there!! Made it up the narrow road in our small car & parked near the barns. If you open the gate, close itbehind you as there is livestock in the area...."
Beauty Bar
11 months ago
"Parked at the abandoned farm, on a narrow country road. Its a bit bumpy, so not the best for very low cars. The castle itself is standing still, anobserver of passing times. You can def still use the stairs, walls are sturdy. One of the best preserved ruins we've ever visited. Normally these places are fenced off...."
Caroline Bird
a month ago
"No charge to visit. Very rough track, can park at bottom of the hill and walk up. Lovely views."
Olivia Begnami
a year ago
"This was a beautiful castle, surrounded by fields and with the highlands on the background. However getting there isn’t easy! The road leading to itis full of potholes making it dangerous to drive. So we decided to walk up, and ended up parking in a wee corner of the road (not ideal). The castle itself is beautiful, but there’s not much more to it! Nice to visit once, but I wouldn’t go back I think! No tickets required, this is a free visit...."

FAQs for Visiting Knock Castle

No signposts exist, but the trail behind Torabhaig Distillery will lead you there.
Proceed with caution; the masonry is unstable and the site includes steep cliffs.
No, the ruin is too unsafe, but you can walk around its exterior.
Typically less than an hour return from the gate on the private road.

The Knock Castle appears in our Complete Guide to Visiting Isle of Skye!

Moira & Andy
Moira & Andy

Hey! We're Moira & Andy. From hiking the Camino to trips around Europe in Bert our campervan — we've been traveling together since retirement in 2020!

Read our full story here

This website uses affiliate links which may earn a commission at no additional cost to you!

Planning Your Visit

Isle of Skye: 29 km

Nearby Attractions

More from this area

More from this area