When I first came to berne, I played a lot, through Volleyball Club Berne. A great way to make friends and learn Swiss German.
Open places - games are set up at Marzili (under the Monbijou bridge) - just go along, make friends, ask to join in. I play once a week at Eichholz at lunchtime in the summer. Bikinis welcome. Afterwards we often go clean off the sand by swimming in the Aare back down to the zoo bridge or Marzili.
Or visit the national Beach Volleyball Center in Beaumont, near the Weissenbuhl train and tram 3 stop. I'm sure you could live a live of nothing but volleyball, sand and sun right there: I'm planning on some daiquiris and suntan now.
Ask on swisscc or meetup or CS to find some players.
http://groups.yahoo.com/group/swisscc http://www.meetup.com/meetupberne/ http://www.couchsurfing.org/group_read.html?gid=1331
The couch surfers are often having a BBQ at Eichholz.
Graham 031 829 3479.
networker in Berne