Cruises: the perfect option for those seeking a hassle-free vacation. Like ocean cruises, river cruises are inclusive of all meals and excursions, and on select boats, Wi-Fi as well as beer and wine. But there are several major differences between the two that are important to note. For one, distances between destinations are much smaller on river cruises, so there is not nearly as much downtime as on an ocean cruise. Simply put, less time is spent sailing. Thus, river cruises are perfect for the traveler looking to see as much as possible during their vacation. Something else to consider is that unlike ocean cruises, river cruises have a season. Most depart April through December, skipping the rainy spring season. If water levels get too high, ships won't have enough space to pass under bridges. Similarly, during droughts, river...