Venture 27 kilometres north of Arrecife to discover some of the world's most awe-inspiring caves. The Jameos del Agua subterranean complex, formed 3,000 years ago by a volcanic eruption, boasts an array of volcanic formations, including lakes, caves, courtyards, and even a subterranean auditorium that regularly hosts concerts. Adjacent to Jameos del Agua, you'll find the remarkable Cueva de los Verdes, a lava tube situated within the protected area of Monumento Natural del Malpaís de La Corona. This tourist attraction features 7-kilometre-long tunnels and a mesmerising subterranean lake in its largest cave.

Arlberg boasts 340 kilometres of marked ski runs, superbly prepared slopes for all ability levels, and 200 km of off-piste and challenging steep slopes and deep-snow ski runs, snowboard fun parks as well as carving areas.

Just outside the city, this 19th-century garden was once the private estate of the Loring-Heredia family. Today it’s open to the public, with winding paths, tropical and subtropical plants, a huge collection of palms, and even a Roman aqueduct tucked between the trees.

Set panoramically against the scenic backdrop of a snowy mountain range, the National History Museum contains a great selection of art and archaeological finds. This is a must-see for anyone interested in learning more about Bulgarian history and art.