Horton Tower Cycle Ride This is a 10 mile (16km) circular cycle route passing by Holt Heath, the 15th Century Chalbury Church, Horton Tower Folly and Monmouth Ash. The starting point is at White Sheet car park at Holt, BH21 7DB. The terrain is a mixture of gravel tracks, bridleways and quiet lanes. There are a few short muddy sections at end of Bagman’s lane. The route is on road for 50% of the time and off road for 50% of the time. There is 1 gradual incline up through Mannington and on to Horton Common. Places to rest or get refreshments include the Cross Keys pub at Mannington and The Horton Inn.