My family and I will be in Wengen for 4 days in August. I was reading about some of the castles around Thunersee (Spiez, Thun, Hunegg, Oberhofen) Would this be an easy day trip from Wengen? Since we will not have a car, would we need a tour guide to drive us around?
Would also like to see the Swiss Open Air Museum Ballenberg - could this be combined with the castles?
Thank you in advance for any input - Melissa