Brienz can be reached by a 30 minute rail journey from Interlaken Ost- all the Luzern trains stop at Brienz. Or you can take a 1.5 hour boat journey from Interlaken- the boat leaves frequently behind Interlaken Ost railway station.All kind of rentals availble at Funrental Interlaken. Scooter bike gokart funcar atv motorcycle etc.