If you're travelling by car
take the A6 motorway exit Thun-Nord/Gunten
Lörrach/Basel – Merligen (ca. 1½ hrs.)
Zurich – Merligen (ca. 1¾ hrs.)

by train
get out at Thun station (ICE stops there)

Further Information
Route planner
SBB timetable
Download map (PDF)