Best time for river cruise

[captfred]

This will be our first river cruise and need advice as to when is the best time of year for a European cruise probably Amsterdam to Budapest.

[pacmom]

Having just returned from Europe, it was getting very crowded. It was also unusually warm. Early June is lovely, the European children for the most are still in school. Most Americans don't think of June as a travel month. September is also a good time to travel. If you have time constraints then just go and enjoy. Pat