The River Ver Trail is a 17 mile linear walking route starting from the source of the River Ver at Kensworth Lynch, Bedfordshire and ending at the confluence with the River Colne in Bricket Wood, Hertfordshire. The river is, as is typical of many such waterways in the region, a chalk stream and as such is rich in displaying the Flora and fauna of the Ver valley. From the start at river source at Kensworth Lynch the trail goes by Markyate, Friar's Wash, Flamstead, Redbourne, Bow Bridge, St Albans and Colney Street to the finish in Bricket Wood. Along the way the trail shares the path with the Chiltern Way, the Hertfordshire Way and Ver-Colne Valley Walk.
The river south of Redbourn has been the site of several watermills down the centuries, mainly for grinding corn but also put to such diverse uses as paper making, fulling cloth, silk spinning and diamond lapping. Eleven mills are known to have existed, of which a number can still be seen today, either as mills (working or otherwise), or converted (for example into private homes or parts of public houses). Particularly worthy of note are Dolittle Mill, Redbournbury Mill, Kingsbury Watermill and Moor Mill.