Hortobágy National Park

A bird-watcher’s mecca, over 310 species have been spotted here. The fragile wetlands, marshes and saline grasslands are home to herons, egrets, spoonbills, storks, warblers, eagles and one of the world’s biggest birds, the great bustard, which reaches a metre (3.3ft) high and weighs 20kg (44lb).

While the casual wanderer can still get close to nature, a visit to the best parts of this huge park requires a guide, and travel must be done by horse, carriage or on foot. The wildlife preserve is about 40km (25mi) west of Debrecen, in the Great Plain.