Flotte Weser. The eight boats of Flotte Weser operate short summer excursions along a considerable stretch of the Weser River between Bremen and Bad Karlshafen. The trip between Corvey and Bad Karlshafen, for example, takes slightly less than three hours and costs €15. Am Stockhof 2, Hameln, Lower Saxony, 31785. 05151/939–999; www.flotte-weser.de. From €15.
Personenschiffahrt K. & K. Söllner. The excursion boat has a 2½-hour round-trip between Kassel and the reservoir at Wahnhausen for €10 in the summer. Die Schlagd, Kassel, Hesse, 34125. 0561/774–670; www.personenschiffahrt.com/kassel/route.html. From €10.
Rehbein-Linie Kassel. There are a number of short cruises, such as a Sunday brunch tour and a three-hour trip from Kassel to Bad Karlshafen available from two main ports of operation in Kassel and Hannoversch-Münden. The company also prides itself on the only "three-river tour" in the area, where in a single trip you travel on the Fulda and Werra rivers as well as the Weser, where these two rivers meet at the tour's starting point of Hannoversch-Münden. Ostpreussenstr. 8, Fuldatal, Hesse, 34233. 0561/18505; www.fahrgastschiffahrt.com. From €17.