Club Subaquatique de Vernier (CSV) is a PADI diving school near Geneva, Switzerland, that trains divers at the Piscine du Lignon pool and continues training in local lakes. It offers the full PADI course range, from a Discover Scuba Diving try-dive through Open Water, Junior Open Water, Advanced, Rescue and Divemaster/Instructor levels, plus freediving and TecRec technical diving courses. The entry-level Open Water Diver course includes nine dives, five in the pool and four in a lake, along with loaned scuba equipment and PADI certification.