By Meredith Carey | Posted to Conde Nast Traveler

If you’re an avid cruiser, you already know the truth: for a spot on the best cruises, with the wildest itineraries, you’ll need to plan ahead before all of the good rooms (or all of the rooms, period) are snatched up. So while most landlubbers are planning their fall vacations for 2019, we’re looking ahead to the cruises of 2020. From a three-day Bahamian getaway to an polar bear-focused Arctic exploration, there’s something for everyone. So find a few friends—or go solo, since cruise lines are making it easier and more affordable than ever to go your own way—and book your next adventure.

Avalon Waterway’s “A Taste of the Danube” Cruise

With the largest suites of any river cruise line and floor-to-ceiling windows for the great cruising views, Avalon Waterways gives us a lot to love. But it’s the fact that they’re waiving the single supplement fee on some of their four-day Danube itineraries next year that has the solo travelers among us really excited. The itinerary picks up in Budapest and ends in Vienna makes stops in Bratislava, Melk, and Dürnstein for a brief tour of the Austria’s Wachau Valley. It’s a easy book for a long weekend or kick-off to a larger European adventure—and it’s on Avalon’s newest ship, added to the fleet in 2019.

Various dates in May, July, September, October, and November, from $749 per person, avalonwaterways.com