The Amazon River
This April, Aqua Expeditions launches a luxury vessel with just sixteen tricked-out cabins. Four onboard nature guides will serve as the ultimate resources—helping you spot piranha, pink dolphins, and sloths—on the seven-night trip into the most remote areas of the Peruvian Amazon. From $5,950 per person; aquaexpeditions.com.
Antarctica
Scratch this polar continent off your bucket list when you sign up for one of AdventureSmith’s great-white-yonder trips. Activities include kayaking, cross-country skiing, mountaineering, and exploring ice-scapes and penguin rookeries. From $4,390 per person; adventuresmithexplorations.com.
The Baltic Sea
The all-suite Seabourn Pride spends twelve days voyaging the Baltic and includes three days in St. Petersburg, plus stops in Helsinki; Riga, Latvia; Klaipeda, Lithuania; Gdansk, Poland; Warnemünde, Germany; and more. From $5,249 per person; seabourn.com.
The Mekong River
AMA Waterways’ luxe riverboat takes you on a seven-day journey through the diverse countryside and cities of Vietnam and Cambodia, with stops in Siem Reap and Phnom Penh before disembarking in Ho Chi Minh City. From $3,198 per person; amawaterways.com.
The Danube
The itinerary on Viking River Cruises’ Romantic Danube tour includes Budapest; Vienna and Melk, Austria; and Passau, Regensburg, and Nuremberg, Germany. Plus, you get to float past dramatic scenery and famous sights like St. Stephen’s Cathedral, which dates from the 1100s. From $3,599 per person; vikingrivercruises.com.