Take the B440 (used to be A4146) from Hemel Hempstead towards Leighton Buzzard. Continue for about 2 miles until you reach Water End and take the second turning on the left after the “Red Lion” towards Nettleden and Frithsden. After 1 mile turn left at the T-junction and then take the next right after 1/4 mile. The pub is 100 yards down the lane on the right-hand side.
From Berkhamsted High Street, turn into Lower Kings Road towards the station. Turn left under the bridge, go over the mini roundabout and bear right around the castle. Turn left at the T-junction and then left at the top of the hill. After about 1 mile take the right hand turn into Frithsden. The pub is 1 mile down on the left.