When does the paddle steamer, Blümlisalp and other types of boats sail? Michael Rieder March 11, 2021 07:08 Updated Boat cruises are running from 2 april 2021. The boat schedule tells you when the two paddle steamers – Blümlisalp on Lake Thun, Lötschberg on Lake Brienz – and the other boat types are running. Related articles Where can I find the boat cruise timetable? Table reservation | boat trips Lötschberg Summit Tunnel | car transport I forgot my online ticket for the car transport at home. What can I do? When will the next car transport run on the Brig - Iselle (Simplon) line?