Cruise through the morning enjoying brunch and the passing scenery. Arrive in Mannheim and disembark for a journey to Heidelberg to see Germany's oldest university, founded in 1386. Then visit the beautiful sandstone ruins of imposing Heidelberg Castle, and take in the scenery of the Neckar River Valley and the city's many red rooftops from its hilltop location. Continue with a walking tour through the Old Town to Heidelberg's renowned gates.
Rejoin your ship in Speyer this afternoon and take some time to look around. You dock in full view of the imposing Romanesque cathedral, a UNESCO World Heritage Site. Built in the 11th century on the site of a former basilica, the building's design was highly influential upon Romanesque architecture for centuries to come, and is the final resting place of eight German monarchs. Its soaring interior features graceful rows of sandstone columns and a large stained glass window installed in the western façade during a later Gothic period.