Lake Geneva, source of life - aged 12 to 19
A 60-minute workshop addressing the 5 themes presented above in the form of a discussion with the students. Depending on the teacher's choice, one theme can be explored in greater depth.

Action against invasive plants (knotweeds) - aged 12 to 19
Knotweed is a plant imported from Asia in the 19th century. They quickly colonised the banks of our rivers and lakes, preventing our native plants from growing. Come and pull out this plant with us, to help us weaken it. It's a fun outdoor activity that helps to promote biodiversity along our banks. All equipment provided by the ASL. 

Microplastics in Lake Geneva - an issue on which we must act - from 15 to 19 years old
A 90-minute workshop on the problem of plastic pollution. First, 45 minutes of theory on the issues surrounding pollution of the aquatic environment, followed by 45 minutes of hands-on practice in which pupils use a microscope to count the quantity of plastic contained in a sample of substrate taken from a beach. The aim is to raise awareness of the quantity of microplastic contained on beaches and to think about what they can do to limit contamination.

Fishing the invisible world of Lake Geneva - aged 15 to 19
Discover the little-known animals and plants of our lake, pond or river. In the field, children will go fishing for aquatic plants that are home to many crustaceans, molluscs and other larvae, and for plankton. Using microscopes and binocular magnifying glasses, they can observe their catch and discover the invisible world of Lake Geneva. All the sampling equipment and microscopes are provided by the ASL.

Birdwatching by the lake - ages 15 to 19
Lake Geneva is home to an impressive diversity of water birds. With the help of binoculars and our identification guide, children will learn how to observe birds and discover their way of life. Look at their legs - what differences enable them to swim? Look at their beaks - what does this bird eat? Look at their feathers when they emerge from the water - are they wet?

Waste clean-up action - 15 to 19 year-olds
There is a lot of rubbish to be found on the banks of lakes and rivers. Once in the water, it degrades, polluting the water we drink, entering the food chain or continuing its way to the sea and then the ocean. It's a way of raising awareness of the pollution caused by litter, and taking action. All materials provided by ASL.

Action to collect cigarette butts in urban areas - 15 to 19 years old
The number of cigarette butts found in the environment is worrying when you consider that cigarette butts thrown on the ground can end up in lakes and rivers, and that a single cigarette butt can pollute up to 1,000 litres of water. So it's important to show young people how many cigarette butts can be picked up in a short space of time, and to give them relevant information so that they too can pass on messages to those around them to change their behaviour.