American Queen Steamboat Company is offering more cruises between Memphis and New Orleans in 2016.
The top-selling one-week itinerary will now operate from the start of the season in February to July 4 and then restart in October and run to the end of December.
A Presidents and Politics themed cruise from Cincinnati to St Louis departing July 17 coincides with the Republican and Democratic National Conventions.
Three Christmas Markets voyages in December include a plantation ball at Nottoway Mansion with food, musicians and stalls selling locally-made Christmas gifts.
From £1,529 per person cruise-only departing December 11 including a pre-cruise hotel night.