PASSENGER VESSEL OUTLOOKne year ago, we reported on vacation river cruising, Columbia and Snake Rivers, starting in March.presenting an industry mostly on the optimistic side In November, ACL launched its second new riverboat Oof growth and expansion for 2018. This year’s review – American Harmony, also built at Chesapeake Shipbuild-is more geographically limited – to the Mississippi River, ing. Construction also started on the third ship in Novem-heartland cruises centered among New Orleans, Memphis, ber. When