Line © OpenStreetMap contributors (ODbL), drawn by Global Adventurer.
The walk
From Stranmillis Weir, the towpath follows the River Lagan south-west out of Belfast by Lagan Meadows to Shaw's Bridge, where the river leaves the city, and on through the Lagan Valley by the locks of the old Lagan Navigation to Lisburn, ending at the railway station.
It is 15.4 km one way with 58 m of ascent; allow about 4 hours. The grade is Moderate: flat and level on a surfaced towpath, shared with cyclists as part of National Cycle Network route 9, with a few steps and road crossings. The Department for Infrastructure describes the whole towpath as 11 miles from Stranmillis to Sprucefield; this line stops at Lisburn station.
The Department closes sections of the towpath for maintenance from time to time: it listed the stretch from McCleave's Lock and Blackstone Bridge to Shaw's Bridge from 27 July to 17 August 2026. Check its Lagan Towpath page before you go. Keep to the towpath, give way to cyclists and keep dogs under control.
Trains run between Lisburn and Belfast, so the walk can be done one way.
Route drawn by Global Adventurer along OpenStreetMap paths (© OpenStreetMap contributors, ODbL), with figures worked out from it. Check the forecast and the ground on the day: paths change.
Good to know
- The Department for Infrastructure describes the Lagan Towpath as an 11-mile route connecting Stranmillis in Belfast with Sprucefield, Lisburn.
- The towpath follows the old Lagan Navigation; McCleave's Lock and Blackstone Bridge are among the points on it.
- Lisburn railway station is on the Belfast line, so the walk can be done one way by train.
Getting there
Start: Stranmillis Weir, Belfast. 54.56860, -5.92730
Directions to the start
By train: Adelaide station is 2.1 km from the start.
Places to stay nearby
Rooms in and around Stranmillis Weir: Booking.com → Expedia → Hotels.com →
Affiliate links: if you book, Global Adventurer earns a small commission at no cost to you.
Paths change, and the weather decides the day. The line is drawn along OpenStreetMap paths and the figures are worked out from it; take a map, check the forecast, and turn back if it isn't right.