Swiss Railways (SBB/CFF/FFS) operates a train from Interlaken to Wilderswil every 20 minutes. Tickets cost $9 - $17 and the journey takes 4 min. Alternatively, Swiss PostAuto operates a bus from Interlaken to Wilderswil hourly. Tickets cost $1 - $2 and the journey takes 7 min. Bernmobil also services this route twice a week.
Yes, there is a direct train departing from Interlaken Ost and arriving at Wilderswil. Services depart every 20 minutes, and operate every day. The journey takes approximately 4 min.
Yes, there is a direct bus departing from Interlaken, Zentralplatz and arriving at Wilderswil, Bahnhof. Services depart hourly, and operate every day. The journey takes approximately 7 min.