Hmmm....not sure up the hills, running by the lake is pretty nice though. Quite a few mini obstacle courses or parcours nearby too which can break up the monotony.

Me and several others from work have done the Lausanne half marathon the last few years, and often ran from Lausanne Vidy up to St Sulpice and back. It's a little less than 10km but that's fine for me for an after work run.

Not done any running this year however, but I need to get back into practice so I might lured back in...but not for marathon distances or breakneck speeds I am afraid.