Eco Tours & Trips in Central Europe

See the UNESCO-listed fortified church in Biertan and wander through Hunedoara Castle with Transylvania's green forests all around. You'll tour the Imperial Palace of Sirmium in Sremska Mitrovica and take a boat to Lokrum Island, where there's ruins of an 11th-century Benedictine monastery.

Sail across the Baltic Sea by ferry and visit some of Central Europe's best-preserved medieval cities, including Torun—a UNESCO World Heritage Site with Gothic buildings and cobbled streets. See Bydgoszcz's canals that connect the Vistula and Oder rivers, then tour Warsaw's Royal Palace.

Coach through Plitvice Lakes National Park, a UNESCO site, and take boat rides across green waters while walking wooden paths above 16 lakes that cascade down. See Postojna Cave's underground world by electric train through 24 kilometers of limestone tunnels, then head to Lake Bled's island.

Navigate the Croatian coastline aboard MS Adriatic Pearl, visiting UNESCO-listed sites including Diocletian's Palace in Split and Trogir's medieval town. Tour Zadar's 1st-century Roman forum and St Donatus church, the city's famous symbol. See Krka National Park's waterfalls followed by wine tasting at a local vineyard with traditional Croatian cuisine.

See Central Europe's eco-heritage at the UNESCO-listed Lednice Castle gardens and the Elblag Canal's water transportation system in Poland. Baltic Sea ferries take you through sustainable routes while you visit Dresden's architecture, walk Berlin's parks during a panoramic tour.