Explore Earth’s last frontier aboard m.s. Le Boreal one of the finest vessels in Antarctica featuring private balconies in 95% of the ocean-view staterooms. Experience fantastically shaped icebergs, turquoise glaciers, bustling penguin rookeries and breaching whales. Join an expedition team of world-class naturalists and board sturdy Zodiac craft for excursions. Enjoy two nights in Buenos Aires. Optional extension to Iguazú Falls.

Cruise for seven nights aboard Le Bougainville from Rome to Valletta. Visit seven UNESCO World Heritage sites. Marvel at Italy’s stunning Amalfi Coast and the superbly excavated town of Pompeii. Discover Sicily’s storied Taormina and the seaside town of Sorrento. See legendary Syracuse and Agrigento’s majestic Valley of the Temples. Learn about the rich history of Malta. Rome pre-tour and Malta post-tour extensions.

Journey through eight countries, discover old-world capitals and charming villages along the Danube River. After three nights exploring Prague, embark the MS Amadeus Star for an eight-night river cruise. Visit Passau, Melk and Dürnstein, the Wachau Valley, Vienna, Bratislava and Budapest. Wander through Kalemegdan Citadel in Belgrade, and sail through the Iron Gate Gorge. Disembark for two nights in Sofia.

Cruise for six nights aboard MS Volga Dream along the scenic rivers, lakes and canals that link Russia’s cultural capitals. Spend three nights in St. Petersburg and one night in Moscow in deluxe accommodations. Visit the State Hermitage Museum and Catherine Palace. Explore Russia’s heartland in 10th-century Uglich and medieval Yaroslavl. Discover the open-air museum of Kizhi Island. Optional Moscow post-tour extension.

Join Climate One Founder Greg Dalton on a voyage through the otherworldly Arctic Circle aboard MS L'Austral on this unique 11-day itinerary featuring a seven-night expedition. Sail the shores of secluded Spitsbergen, the jewel of Norway’s rarely visited Svalbard archipelago. Enjoy expert-led Zodiac excursions in diverse terrains, where remarkable wildlife—from whales and walruses to Svalbard reindeer and Arctic foxes—roam freely. Optional Paris pre-trip extension.

Visit Copenhagen’s Rosenborg Castle and Christianborg Palace. Travel to Elsinore, setting of Shakespeare’s Hamlet. Board an overnight ferry to Oslo, and head to the ski resort of Gaala. Enjoy charming Bergen, the Western Fjord District, and ride on the Flåm Railway. Discover Oslo’s architecture and the Viking Ship Museum. Optional 4-day/3-night post-tour extension in Stockholm. 

Join Judge LaDoris Cordell (Ret.) as we travel to Selma’s Edmund Pettus Bridge and Little Rock High School. Meet with 16th Street Baptist Church bombing survivor Dr. Rev. Carolyn McKinstry, Bloody Sunday foot soldier Annie Pearl Avery, and Little Rock Nine member Elizabeth Eckford. Visit the new Memorial for Peace and Social Justice in Montgomery and the Civil Rights Museum in Jackson.

Discover the vibrant reefs of Belize and the dramatic Maya ruins of Tikal on a comprehensive land-and-sea expedition.  Sail aboard the newly built 100-guest National Geographic Quest to snorkel, kayak and stand-up paddleboard along the Mesoamerican Reef, the largest reef in the Northern Hemisphere.  Then venture to Tikal to explore stone temples swathed in rain forest and teeming with wildlife.

Explore this magnificent land of extremes with study leader Frank Ackerman, former Death Valley National Park Ranger.  Visit Badwater Salt Flats (282 feet below sea level) and enjoy a stunning panoramic view of all 11,049 feet of Telescope Peak.  Hike amid the multi-hued walls of Golden Canyon; experience sunrise at Zabriskie Point; and visit Ubehebe Crater.

Experience a 16-day journey from Mumbai to Mysore to the wildlife haven of Nagarhole National Park.  Explore Calicut, "City of Spices," then enjoy a leisurely two-night cruise along Kerala's palm-fringed canals. Discover fascinating Kochi, boasting its rich mix of Arab, Portuguese and Dutch influences. Delhi and Agra pre-tour extension and Sri Lanka post-tour extension.