There is plenty of green family fun for all ages at Peterborough's festival
Green comedy and eco fashion, art workshops and guided walks. Just a few of the green-inspired events taking place in Peterborough and Cambridge.
Both cities have organised green festivals for spring and Peterborough's is starting on 31 May 2010.
The BBC is also getting involved as each festival involves Springwatch-inspired Wild Days Out.
So there is no excuse for us all not to do our bit for the environment - and have some fun as well.
Peterborough is kicking off the events at the 2010 Whitsun Bank Holiday and this is the 19th Green Festival the city council has organised.
Cathedral Square is the venue and visitors can learn how to make a bird box, find out how to save money on their water bills, discover why the Vikings did not have a word for rubbish and try delicious organic food.
People are also being urged to get on their bikes. Lots of cycling events have been organised, including an 11-mile guided cycle around beautiful John Clare country.
The grand finale of the festival is a Wild Day Out on 6 June in the gorgeous setting of Ferry Meadows. You will be able to take part in the Springwatch Big Wildlife Survey. In a first for Nene Park the findings will be collated and will be used to discover the true picture of the wildlife on Peterborough's doorstep.
These are just a few of the events planned but you'll find much more on the website.
Tree planting is just one of the activities on offer at the festivals
The Cambridge Environment Festival has chosen biodiversity as its theme - to mark the UN International Year of Biodiversity.
Events kick off on 12 June 2010 and one of them is a visit to Peterborough to explore the city's inspirational green backyard, set in 2.3 acres of previously derelict land.
Children can pick up young explorer backpacks from the Cambridge University Botanic Garden and try out a number of green-inspired activities throughout the Festival.
Walks, talks, bug hunts and green advice will be on offer for all ages in a packed programme of events, including a chance to see how some city residents have transformed their houses into environmentally-friendly paradises.
The Cambridge Wild Day Out will be set in the leafy environs of Lammas Land on 13 June.
For details of these and many other events planned, go to the website.