May 24, 2016 - 2:37 PM
in reply to FLhobbit
It seems you have looked at a map, but a closer look will reveal that the route through Bern is all on 4 lane motorways. Traffic is orderly, the routes are clear, and only as you go along the Thuner See after Spiez do the roads become 2 lane highways, still with limited access.
Easy driving. Don't worry about it. You won't even need a GPS, but a map is convenient to judge progress.
Watch the signs carefully as you near Interlaken. Make sure you take the one for Lauterbrunnen, or you may have to drive through "city" streets, in which case a GPS is useful.
You may well make it before sunset, since that will be at 2120, more or less.
www.sunrise-and-sunset.com/en/sun/swit zerland/lauterbrunnen/ 2016/june
At Lauterbrunnen, there is a huge low cost parking garage right by the train station, in case you have trouble parking at your hotel. Cheap parking for everyone going up in the mountains.
Your dilemma illustrates why I use a train as much as possible in my Swiss travels, or drive in daylight. In the winter, with early sunsets, I have to use familiar routes.... I have gotten lost in Burgdorf a dozen times at night. ;-) No trouble in daylight.