Ignore the first turn off for Keswick and instead carry on the A66 until you come to a big roundabout.
Turn first left at the roundabout which takes you down Crosthwaite Road.
Take the first left down Brundholme Road (this is just after The Filling Station Cafe on your left, and the Pheasant Inn on your right).
Go along Brundholme Road, keep going past Keswick Spa leisure pool on your right, round the bend, under an old railway bridge and Brundholme Gardens are the next turning on your left. Walkers' Rest is the second house on your left after turning into Brundholme Gardens (number 2).