Leave the M5 at junction 27, taking the A361 towards Barnstaple. Stay on this road all the way to South Molton (approx 25 miles).
Do NOT turn off at the first roundabout into the town.
At the second (larger) roundabout, turn right onto the A399, signposted to Woolacombe, Ilfracombe and Lynton. Stay on this road, passing through the village of Brayford.
5 miles after Brayford, turn right onto the B3358 and continue (for approx 2 miles) to Challacombe. Upon entering the village, go 350 yards past the 'Challacombe' and 30mph signs, and then turn left up a small lane signed 'Swincombe Mill'.
You will then pass a house on your right. The Old Dairy Barn Cottage is the next property on the right, and then Swincombe Mill Cottage is the next property on the left.
Sat Nav: EX31 4TU
Note, mobile phone network coverage is very patchy on Exmoor. There is no signal on any network at Challacombe.