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Activities

Guided Bat Walk in Ruislip Woods

Guided Bat Walk in Ruislip Woods

Friday 24 Apr 2026

Ruislip Lido Woodland Centre, Ruislip

Join Ruislip Woods Trust for a guided evening walk around the Lido in Ruislip Woods and hopefully see some bats. Walk organised by Hillingdon council.

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Harmondsworth Great Barn Open Day

Harmondsworth Great Barn Open Day

Sunday 26 Apr 2026

The Great Barn, Harmondsworth Barn, Harmondsworth

Explore this medieval barn on the former Manor Farm in the village of Harmondsworth, in the London Borough of Hillingdon.

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Church Gardens in Harefield Sunday Opening

Church Gardens in Harefield Sunday Opening

Sunday 26 Apr 2026

Discover Harefield’s secret gardens: Church Gardens are a family restoration project open to the public on Sunday afternoons, 12-5pm, from April 6th–October 18th and on Bank Holiday Mondays 11am- 5pm

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The Colne Valley Regional Park is the first substantial taste of countryside to the west of London. The Park, founded in 1965, stretches from Rickmansworth in the north to Staines and the Thames in the south, and from Uxbridge and Heathrow in the east, to Slough and Chalfont St Peter in the west.

A mosaic of farmland, woodland & water with 200 km of rivers, canals and over 60 lakes

The Colne Valley Regional Park, formed in 1965 , stretches from Rickmansworth in the north, to Staines and the Thames in the south, Uxbridge and Heathrow in the east, to Slough and Chalfont in the west. Covering 43 square miles the landscape is a mix of bustling towns, green spaces and waterways which are the first taste of countryside immediately west of London.

The Colne Valley Park Trust aims to highlight this fantastic and varied area, its history, rich landscape and biodiversity. Many people live, work and visit the Colne Valley, but too few realise it forms part of a vibrant regional park.

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Countryside on your doorstep – Explore the Colne Valley

Spotlight

Why we need to protect the Colne Valley Regional Park

Act now to secure its legacy and potential!
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A Corridor for Life

Our campaign aims to make the Colne Valley Regional Park one of the best green corridors round any city in the UK.
We are calling for a co-ordinated cross-border masterplan for development, which would drive restoration of the landscape for people and wildlife and create healthier and resilient communities with a stronger economy.

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About the Regional Park

Students at Brunel University London and West London Film and Media CIC created this informative video.

It explores some of the many attractions in the Colne Valley Regional Park, highlighting the practical uses of the land, farming, angling, its many circular walks, and how to support it. The video also deals with the many threats and pressures facing the regional park due to its close proximity to the urban areas of west London, including giant infrastructure projects such as the High Speed 2 railway line.

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Coca Cola Volunteers

Get involved

Find out how you can join in with the variety of activities on offer within Colne Valley Regional Park.

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Canal

Projects

Implementing a number of projects that help achieve the objectives of the Colne Valley Regional Park.

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Black Park

Things to do

Whether you are looking for a way to entertain the family, get active in the countryside or simply relax.

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Colne Valley Visitor centre

Visitor centre

Located in Denham Country Park near Uxbridge, this is the central information point for the Colne Valley Regional Park.

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Protecting the Colne Valley Regional Park

From 22-29 April - One donation, twice the impact. Help us protect The Colne Valley Regional Park - Countryside on your doorstep!
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Fray’s River

Fray’s River is a 5½ mile long river that branches off the River Colne just north of Denham Lock on the Grand Union Canal and rejoins it just south of Drayton Mill in West Drayton. Here you can learn about its history and find directions to walk its length.
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Feeling Optimistic in 2026

We start 2026 feeling optimistic about the future of the countryside on the western doorstep of our capital city, find out why here.
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Ridding the River Alderbourne of Invasive Species

A partnership project to improve the health of the river Alderbourne, particularly focussing removal of the invasive species skunk cabbage.
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Bigley Ditch

Learn about Bigley Ditch, one of the branches of the lower Colne, a fascinating part of the catchment with a very rich history.
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Building near Railway Stations

There is growing discussion about encouraging large scale housebuilding in the Green Belt next to railway stations. If this happens, we argue that it must be designed to allow easy access to the countryside for people travelling out of the city by train.
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