Yes. Only Prien am Chiemsee to Herreninsel, Herreninsel to Fraueninsel and Fraueninsel to Gstadt am Chiemsee sail all year; the other lines are seasonal. Seebruck to Chieming, Fraueninsel to Seebruck, Chieming to Fraueninsel, Bernau am Chiemsee to Herreninsel, Fraueninsel to Herreninsel and Herreninsel to Prien am Chiemsee run early May to early October. Übersee to Fraueninsel runs mid-May to mid-September.