Days Out NI
Castle & ruin Larne

Olderfleet Castle

A free, four-storey Tudor tower house guarding Larne Lough on the Curran peninsula.

4 photos
OpenOpen access in daylight hours; access is…
FreeBook ahead
LarneCastle & ruin
15-20 minutesHow long
FreeEntry
View outsideAccess
NearbyParking
On leadsDogs

Olderfleet CastleA free, four-storey Tudor tower house guarding Larne Lough on the Curran peninsula.

  • Getting in: Free, no ticket or booking. State Care Historic Monument cared for by DfC Historic Environment Division.
  • Opening: Open access in daylight hours; access is occasionally restricted during conservation works.
  • Inside: No — the ruin is gated and badly broken. You view and photograph the tower from outside.
  • Dogs: No specific policy published; as an open coastal site, dogs on a lead are sensible. Check before you go.
  • Parking: Limited parking along Coastguard Road, plus a small layby off the Larne Harbour roundabout. You can also park in the town centre and walk the Inver towpath.
  • Food: None on site. Cafés and shops are about a 30-minute walk away in Larne town centre.
Plan your visit

What you'll actually see

The surviving tower is a square, four-storey structure, badly broken on the south side, so the standing gable is what catches the eye from the road. Look low and you'll spot the double-splayed gun loops in the basement, built for firing out across the harbour approach. The site is gated, so this is a look-from-outside ruin rather than one you climb, but the position does the work: it sits right on the Curran point with water on both sides. Give it ten or fifteen minutes and a few photographs.

Free 16th-century tower house Larne Lough views State Care monument Edward Bruce link Picnic spot nearby
Good to know before you go:

Olderfleet itself is a quiet open-air ruin with no fixed event programme, but Larne and the wider Mid and East Antrim coast host heritage walks, living-history days and seasonal events through the year. It's worth checking what's on locally to build a fuller day around your visit.

Before you set off

What to bring

  • 👟Sturdy shoesRuins mean uneven ground, worn steps and the odd spiral stair.
  • 🧥A coatMost of it is open to the sky, so dress for the day and enjoy the fresh air.
  • 📷A cameraThe old stonework and the views are the whole point — you will want photos.
  • 💧Water and a snackFew ruins have a café right on site, so bring a little something.
Good to know

Everything before you go

Getting in
Free, no ticket or booking. State Care Historic Monument cared for by DfC Historic Environment Division.
Opening
Open access in daylight hours; access is occasionally restricted during conservation works.
Can you go inside
No — the ruin is gated and badly broken. You view and photograph the tower from outside.
Food
None on site. Cafés and shops are about a 30-minute walk away in Larne town centre.
Dogs
No specific policy published; as an open coastal site, dogs on a lead are sensible. Check before you go.
Parking
Limited parking along Coastguard Road, plus a small layby off the Larne Harbour roundabout. You can also park in the town centre and walk the Inver towpath.
Accessibility
Open coastal grass-and-path setting; surfaces are uneven and the towpath approach is long. Not assessed for step-free access.
How long to allow
15-20 minutes at the ruin, or up to 1.5 hours including the towpath walk from town.
Address
Coastguard Road, Larne, BT40 1AY
Questions

Before you go

Is it free to visit?
Free, no ticket or booking. State Care Historic Monument cared for by DfC Historic Environment Division.
Can you go inside?
No — the ruin is gated and badly broken. You view and photograph the tower from outside.
When is it open?
Open access in daylight hours; access is occasionally restricted during conservation works.
Can I bring the dog?
No specific policy published; as an open coastal site, dogs on a lead are sensible. Check before you go.
Where do I park?
Limited parking along Coastguard Road, plus a small layby off the Larne Harbour roundabout. You can also park in the town centre and walk the Inver towpath.
Getting there

Olderfleet Castle is at Coastguard Road, Larne, BT40 1AY. Limited parking along Coastguard Road, plus a small layby off the Larne Harbour roundabout. You can also park in the town centre and walk the Inver towpath. Tap below for directions.

Nearby

Make more of the day

The story

The story of Olderfleet

The Curran point has guarded the mouth of Larne Lough for centuries. The name Olderfleet is thought to come from Ulfreksfjord, the Norse name for Larne Lough, a reminder that Viking ships once used this sheltered water. A tower house here is traditionally linked to the Scoto-Irish Bissett family of Glenarm, said to have held a castle on the Curran from around 1250.

Olderfleet's most famous moment came in 1315, when Edward Bruce, brother of Robert the Bruce, landed near here with a Scottish army intent on taking Ireland from the English crown. The Bissetts are associated with that landing, which opened a brutal three-year campaign across the island.

The standing remains, however, are now generally dated to the 16th century — a square, four-storey tower house with gun loops in its basement, built to control the harbour and serve as a defended warehouse. In 1569 the crown seized this strategically vital point, and by the early 1600s it was tied into the wider Plantation-era effort to hold the sea route between Ireland and Scotland.

In 1938 the ruin passed into state care, and it is now protected under the Historic Monuments and Archaeological Objects (NI) Order 1995. Only the tall south gable and parts of the tower survive, but they still mark the spot where Norse traders, the Bissetts and Edward Bruce's invasion all met the Antrim coast.