The forthcoming London Green Fair is billing itself as "a free festival that reflects the green aspirations and achievements of London as a whole", which to me sounds like a pretty good reason for a big knees-up.
Taking place in the splendid surroundings of Regent's Park on the 4th and 5th of June, the event will be putting on a range of activities and entertainment, from live music to ethical fashion shows.
The main stage's musical offerings will be diverse enough that everyone should be able to find something to boogie to – you'll have Cuban, ska, gypsy, roots and beats, and a whole lot more.
You'll get to see the crowning ceremony for Miss Earth UK, an event with contestants that take an active interest in helping to protect and preserve the environment so that it can be enjoyed by future generations.
Expect to see a large space for the kids to play around in, featuring a "recycled textile mountain". The kids can enjoy having a go at making costumes, and also get involved in dance workshops and theatrical events.
The organisers will be setting up a little village green where you can enjoy some folk singing and dancing, as well as maypole dancing – just like you'd see on any village green in the UK come the weekend (OK perhaps not).
Those interested in a good debate, or wanting to find out more about London's green credentials, should make their way to the Speakers' Tent. The tent will also host lots of 'green' stalls and special exhibits.
And if all that isn't enough, you'll also find the BikeFest (cycling demos; bike races; skidding competitions), the Permaculture Zone, a healing area, global cuisine, and ethical markets.
Around 15,000 are expected to attend the London Green Fair on each day, so go along and join the party.