Come on board the stunning crystal ship: On this two-hour round trip from Passau to Kasten, Obernzell and back, you will be enchanted by the magic of water! In our incomparable crystal ship - exclusively made with Swarovski Crystals - you will experience the fascinating world of the mermaid Isa in a glittering dream of water and crystal! Be amazed by the unique attractions on board, such as crystal water features, Neptune's kingdom, water theater and other crystal and water attractions. Around a million Swarovski crystals are installed in the crystal ship.