What is the difference in river cruise companies?

Some ships are known for their culinary flair and others for free bicycle use.  Several new “theme cruises” set different sailings apart, from Tulip Time to beer and wine tastings to Jewish heritage and Christmas markets.  The list now includes specials sailings for chocolate lovers as well as golfers and jazz fans.  While most river cruises are geared toward adults and allow two guests per cabin, a few hold special multi-generational sailings where all family members are welcome.  Find the one that feels right to you.  Some of my favorite lines include AMAwaterways, Avalon and Viking but there are many more.

How are they similar?

Unlike ocean cruising, river cruise ships hold no more than 200 guests.  This intimate setting allows for three wonderfully prepared meals each day, cultural and historical speakers, included tours and excursions and unmatched service throughout your cruise.  Because of the lock system on the rivers in Europe, nearly every long ship is the same size.