Free local events for Great Big Green Week 2026!

Taking place between 6 and 14 June, this year’s theme, ‘Together for Good’, focuses on the collective effort to effect change. Community action builds relationships that can influence decision makers.

This marks the third consecutive year that the Council has supported the campaign, bringing together local organisations, community groups and residents to deliver a diverse programme of events and talks across the borough.

The week will feature a range of free, family-friendly activities designed to inspire residents to get involved in local sustainability initiatives. From practical tips for greener living to opportunities to connect with local environmental groups, the events will showcase simple ways everyone can make a difference.

Activities taking place during the week:

• Saturday 6 June: Protect your bike from theft and get it road-ready at the ‘Get on Your Bike’ session with Hertfordshire Police at King George Playing Fields, from 11am to 2pm. Residents can have their bikes securely marked and receive a free bike MOT.
• Sunday 7 June: Join the family-friendly Family Forest School Day with Culture Wood between 11am – 12:30pm to explore nature, climb trees and learn bushcraft skills. Suitable for families with children under 12. Email info@culturewood.co.uk to book a space.
• Monday 8 June:
  • Join the council for its Chats for Change coffee morning at Hatfield Swim Centre from 12pm -  2pm. Come along for a free cuppa, connect with others in the community and chat about all things climate and sustainability. No booking required, just turn up.
  • Enjoy a guided tour around Tewin Greens Market Garden from 10am – 11am. Explore the gardens, meet fellow garden lovers and discover green tips! Booking is required.
• Tuesday 9 June: Try your hand at gardening and join CultureWood at King George V Playing Fields to help with litter picking, hedge trimming, weeding and watering newly planted flowers and shrubs. No experience or booking is required, simply drop in between 10am and 12pm and get involved.
• Wednesday 10 June:
  • Paint and decorate a bug hotel at the Howard Centre from 4pm – 5pm. Perfect for children aged 8+. Book a place online.
  • Explore Severn Trent’s anaerobic digestion facility to discover the journey of food waste and how it is transformed into energy. Taking place at Severn Trent in Colney Health from 12:30pm. Booking is required.
• Friday 12 June: Take part in an exciting evening Bat Walk at Stanborough Park North, 8:30–10:30pm, with CultureWood. Suitable for children 8+. Book your space online.  
• Saturday 13 June: Refresh your wardrobe sustainably at the Clothes Swap in the Howard Centre, next to the main escalators, from 12pm to 3pm. Bring along unwanted clothes and exchange them for quality pre-loved fashion while helping to reduce textile waste.

Councillor Sandreni Bonfante, Deputy Leader of the Council and Executive Member for Climate Change, said:  

“I am delighted that we are supporting Great Big Green Week once again and offering a wide range of free, family-friendly events that make it easy for residents to get involved in climate action. This year’s theme highlights the power of sharing and community, and I encourage everyone to come along, learn something new, and take part in building a greener, more sustainable Welwyn Hatfield.”

The council’s continued involvement in Great Big Green Week reflects its commitment to help tackle the climate emergency by achieving net zero carbon emissions as an organisation by 2030, and across the borough by 2050. Through initiatives such as Great Big Green Week, the council aims to empower residents and local communities to take meaningful climate action together.

To view the full event calendar with full details of each event, please visit one.welhat.gov.uk/great-big-green-week.