Seabourn has announced new UNESCO Partner Tours at World Heritage Sites across Europe over the cruise season ahead, as part of its exclusive partnership with the United Nations Educational, Scientific and Cultural Organisation (UNESCO).The tours will offer guests privileged access, guide-led exploration, and remarkable experiences, as with all such offerings since the partnership began in 2014.“Our partnership with UNESCO keeps rewarding our guests, providing them with opportunities to experience World Heritage Sites in Europe as few travellers can,” Seabourn President Rick Meadows says.Available on select scheduled Seabourn cruises starting this northern summer, each UNESCO Partner Tour focuses on individual UNESCO World Heritage Sites selected – and protected – for their cultural, historical, scientific or other significance to humankind. The tours include:Portland, England: Stonehenge – Enjoy the rare privilege of slipping past ropes that keep tourists at bay and walking among the towering stones of Stonehenge on the Salisbury Plain of England. Guests will have a full hour to explore, snap photos and take in the majesty of the standing stones. Available on the port call at Portland for Seabourn Quest on 20 August.Amalfi, Italy: Extraordinary Amalfi Cooking Class – Celebrate Amalfi traditions and heritage with a hands-on visit to the 13th-century paper mill that enabled the spread of ancient Amalfi Law. Join Salvatore Aceto, the last in the line of a multi-generational Amalfi lemon-farming family, as he retraces his family history. In a family-style outdoor kitchen with spectacular views learn traditional recipes and techniques in a cooking class concluding with a traditional Amalfi lunch and of course the family limoncello. Available on all 2017 port calls to Amalfi for Seabourn Encore (11 June, 7 and 27 July, 26 August, 25 September) and Odyssey (7 and 27 June, 25 July).Valencia, Spain: The Silk Exchange – Valencia was the final stop on the Silk Road, a stop giving riches to the city in the 15th century. Today the skilled weavers have vanished and only one man alive is able to work the 5000-thread loom and produce the last pure velvet of this tradition. A complex process extravagant to witness, this skill will be lost upon his retirement. A visit to the Gothic Silk Exchange Building concludes with a market visit and horchata tasting. Available for the port call to Valencia on Seabourn Encore on 5 September.Gibraltar: The Ultimate Archeologist Experience at Gorham’s Cave – Gorham’s Cave Complex is one of the world’s most important sites for understanding the “global story” of human evolution and adaptation. Join Drs Geraldine and Clive Finlayson, scientists involved in “unearthing” these rich discoveries, in the heart of the cave so deep that only 120 people can access it each year. A subsequent visit to the Gibraltar Museum will offer access to archeological finds not available to the general public. Available on port calls to Gibraltar on Seabourn Encore 11 August & 10 September.Barcelona, Spain: The World of Gaudi – Discover the famed and brilliant modern architect Antoni Gaudí, who created his most unusual and controversial works in Barcelona. Join an expert architect for a guided tour of the magnificent Sagrada Familia Cathedral – after more than a century, still a work in progress – considered to be Gaudí’s richest work and truest to the Modernist form. Available on all port calls to Barcelona on Seabourn Encore (20 May, 3 June, 16 July, 5 and 15 August, 4 and 14 September) and Seabourn Odyssey (17 May, 16 July, 4 October)Valletta, Malta: Megalithic Malta & the National Museum of Archaeology – Hagar Qim is the oldest freestanding megalithic temple in Europe and likely an ancient shrine to Mother Earth. Join one of Malta’s renowned national archaeologists at this important excavation as the history of ancient civilisations comes alive. Enhancing the visit further, a restricted access chamber will be made available with explanation on the conservation of Hagar Qim. Go behind the scenes in a private viewing room with Director Sharon Sultana’s team revealing the private prized pieces of the National Museum’s “hidden” collections in Valletta. This include an up-close viewing of the, now-famous, elongated skulls found in Hal Saflieni Hypogeum linking past legends of Malta to the heritage of today. Available on port calls to Valletta on sailings aboard Seabourn Odyssey (29 May, 26 June, 29 July, 23 September) and on Seabourn Encore (26 July, 25 August, 24 September).