Birdoswald and Hadrian’s Wall. Walk east from Birdoswald  across a field and you come to milecastle 49 (Harrow’s Scar) from where there’s a descent to the River Irthing, one of three rivers which Hadrian’s Wall crossed (there was also the Eden in Carlisle and the Tyne at Chesters).
In Roman times the river was slightly to the east of where it is now because after crossing the modern bridge - lowered into place in 1999 by helicopter to avoid damaging the archaeology of the site - you’ll come to some of the stonework of the old bridge. An information panel explains that three successive bridges were built by the Romans here while a diagram illustrates what the first one might have looked like.
Past Willowford west turret and Willowford east turret, the path crosses a small road  on the outskirts of Gilsland, goes over the railway line (Carlisle to Newcastle line) and arrives at milecastle 48 (Poltross Burn) at Gilsland. This is where you can turn round and head back to Birdoswald.

Hadrian’s Wall Path: www.nationaltrail.co.uk The 84 mile (135km) path follows the line of the Roman Wall between Bowness-on-Solway (west of Carlisle) and Wallsend, east of Newcastle.  

Coast to Coast walk: www.wainwright.org.uk Devised by Alfred Wainwright, this 192 mile (307km) walk links St Bees Head near Whitehaven and Robin Hood’s Bay in North Yorkshire. It goes through three national parks. If you’d rather get some sea air at St Bees than do the long walk make for the cliffs, first to South Head and then along to North Head. 

Cumbria Coastal Way: www.ldwa.org.uk A 182 mile (291km) route between Gretna near the Solway Firth and Silverdale beside Morecambe Bay.

The Cumbria Way: www.cumbriaway.org / www.ldwa.org.uk A 70 mile (112km) route linking Carlisle with Ulverston. It goes through Keswick, Borrowdale, the Langdales and Coniston.

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