Hundreds headed for the lake and rivers around the region yesterday as temperatures hit more than 30 degrees.
Swimmers in the Rhone were not put off by the worrying figure of 5 drownings in the last seven days in Geneva.
The police were out to keep an eye on the sun worshippers.
Heat closes Geneva paddling pools
Soaring temps hit hospitals
Crans-Montana looks to summer season after fire tragedy
MétéoSuisse warns of budget cuts
Rents rise Geneva - more than Zurich
Better passenger rights coming
