Can I also use Check-In/Check-Out on boat cruises?

Yes, in Switzerland, it is valid on the entire network of the GA travelcard.

Boat cruises within the network of the GA travelcard:

• Lake Brienz
• Lake Thun
• Lake Zurich
• Lake Lucern
• Lake Geneva
• Lake Zug
• Lago Maggiore (only Swiss part)
• Lago di Lugano
• Lake Constance (only connections from and to stations in Switzerland)
• Lake Neuenburge
• Rhein (Schaffhausen – Stein am Rhein)
• Lake Murten
• Lake Hallwil
• LAke Murten
• Lake Biel/Bienne

Boat cruises outsied the network of the GA travelcard (Check-In not possible):

• Lake Constance (connections along the German / Austrian shore).
• Lake Maggiore (Italian part)
• Lake Walen
• Car ferry on Lake Lucerne
• Rhein (Basel - Rheinfelden)
• Rhein (Eglisau – Neuhausen)
• Lago Maggiore (italian part)
• Greifensee
• Lake Walen
• Lake Sarnen
• Lac du Joux