Not often used
Access
http://www.cvld.ch/pages/sites-de-vol/sites-du-club/la-barillette-ou-les-burnes-gelees.html
Rules
Take care of the TMA of Geneva airport. max. 2000 meters on the Jura, and 1050 on the plain http://www.cvld.ch/pages/securite/espace-aerien/tma-de-geneve.html