Situated at the heart of Croatia, an easy day trip from Zagreb or Split, the Plitvice Lakes National Park encompasses 16 jaw-dropping lakes amid dense jungle and forest tumbling in a multitude of glorious cascades. Recognised by UNESCO for their geological and ecological importance, the lakes boast unique, mineral-rich turquoise waters, abundant fauna and flora, and stunning views in all directions. Meander along 18 kilometres of wooden footbridges, immersed in an other-worldly environment, watching hundreds of butterflies dance above. There are various routes and options for exploring the lakes, ranging from two to six hours. While swimming is not allowed, nearby Krka Waterfall National Park in Dalmatia offers a chance to fulfil that desire in a similarly breathtaking setting.