The wait is over. It’s time to slip on your wellies, slap on the suncream and head to your local pond or lake. The OPAL water survey has begun.
The launch was marked with huge projections of giant frogs and dragonflies on Battersea Power Station in London.
Anyone can take part in the survey - it’s simple, fun and your results will help us learn more about water quality and pollution across the country.
Good water quality is essential for the survival of many plants and animals. However, water can become polluted from agriculture, industry and the rubbish we throw away.
By looking for animals in the water you'll help us discover how healthy our lakes and ponds actually are – something we know surprisingly little about.
To get started, simply download one of our free water survey packs.
Submit your survey results and win a set of wildlife identification guides
Once you’ve completed your survey, it’s really important that you submit your results using our simple online form. This should take no more than five minutes.
As an added incentive, when you submit your survey you can enter into one of our draws to win a set of 10 wildlife identification guides. A draw will take place in May, June and July.
Water fun and games in our Kids Zone
Visit the Kids Zone to download our water activity sheets which include lots of water wildlife facts and puzzles.
Share your pond life photos with the world
Add your best photos of pond wildlife to a Flickr group created by the Guardian. Your image may even appear in the Guardian newspaper.
The water survey launches in central London