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There are so many ways to get involved with helping to make the River Colne a nicer, healthier place for all.


Take a look below to discover what events and volunteering opportunities available. 

If you would like information in another language or have other Web Content Accessibility needs, please email

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Tales of the River: Wildplay Sessions

Brought to you by The National Lottery Heritage Fund, with thanks to National Lottery Players. 

Wednesday 29 May, Oxhey Activity Park 


Join Groundwork East to get outside and learn more about Watford's rich heritage and history, through fun and engaging activities in a local greenspace.  

This event is free to attend - but please do book a ticket so we can judge numbers accordingly.


Tales of the River: Travelling Tales

Brought to you by The National Lottery Heritage Fund, with thanks to National Lottery Players. 

‘Travelling Tales’ is an interactive heritage tour of the River Colne, available to community groups and schools in Watford. 


Our aim is to engage the residents of Watford with the history of the river and emphasise the role that the Colne has played in Watford.

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Rediscovering the River Colne: Corporate Team Building and Health Walks

Location:  Multiple sites across Watford, 2023/24

As part of the Rediscovering the River Colne, there are opportunities for businesses to get involved with practical conservation, invasive species clearances and litter picks.

Enquire today to discuss pricing and availability of these opportunities.


Rediscovering the River Colne: Oxhey Village Walking Group

Oxhey Village Green
Every Monday at 6:30pm

Get outside and meet with a group of like-minded people to explore the local area!​ This enthusiastic and social group, open to people of all abilities, meet each Monday to walk to 5k (or however far you can go)!


Become a River Colne volunteer

We are gearing up for the next exciting phase of our works and we are on the lookout for volunteers to dive right in!


Whether you’re in the river in waders, moving materials, handing out tea and cakes, there’s a role for everyone to make a real difference.

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Tales of the River: Walk Leaders

Brought to you by The National Lottery Heritage Fund, with thanks to National Lottery Players. 

Have a story to tell about Watford's natural, cultural or industrial heritage?


Can you inspire others with your creativity and passion?


We are looking for paid walk leaders to run river walks linked with the River Colne. 


Rediscovering the River Colne: Green Gym Conservation

Meet at Watford Rugby Club 
Tuesday and Thursday, 10am-1pm

Run twice weekly, Green gym is a volunteer-led group who run a range of conservation activities along the River Colne. Green Gym is free for anyone to join in, and make a difference in their local community. The activities suit all ranges of fitness. 


Volunteer at our Great Big Green Week stall

Sunday 9 June 2024 


Groundwork East will be attending the Watford Green Market event, as a part of Great Big Green Week in Watford. You will join the Groundwork team to help promote the River Colne Programmes and encourage the local community to join events and volunteering.


Join for as much time as you can give, whether its setting up the marquee at the start of the day, or a couple of hours to hand out leaflets.


Tales of the River: Quiz a River Whiz! 

Brought to you by The National Lottery Heritage Fund, with thanks to National Lottery Players. 

Want to hear more about the Rivers and the Colne as part of a society meeting or school assembly? We are working with experts who can come and present to your students about what is happening to the River Colne and how we making it a safer and heathier river for all. 

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Rediscovering the River Colne: Friends of Oxhey Park Meet-Up 

Oxhey Park

Second Saturday of each month, 10.30am, March-November (except August)

Friends of Oxhey park are a volunteer group who aim to make the park a safer and more welcoming space for families and anyone who wishes to enjoy their local area. Friends of Oxhey Park are a social group who welcome anyone that would like to take part.

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