A River cruise is a voyage along inland waterways, often stopping at multiple ports along the way. Since cities and towns often grew up around rivers, river cruise ships frequently dock in the center of cities and towns.
Refers to a pleasure outing on a ship or boat involving a significant amount of drinking, or an outing to purchase large amounts of alcohol in bulk for a party or outing. It probably originated during Prohibition, when Americans would take “cruises to nowhere” to enjoy alcohol, which could legally be served on board once outside American territorial waters. Typically a booze cruise is now considered a all-inclusive cruise where alcohol is included in the price of the cruise.