One of the largest and most scenic karst cave systems in Europe, with a visitable route of around 850 metres winding through colossal chambers adorned with stalactites, stalagmites and age-old columns. The internal temperature remains constant at around 14 °C throughout the year. Guided tours are available from April to October and allow visitors to admire crystal formations of rare beauty, including the spectacular «Hall of Wonders».
The Lequarci Waterfall is one of the tallest in Sardinia: in spring and after autumn rains the water plunges over 40 metres into a wooded gorge of rare beauty, creating a cool and shaded environment surrounded by holm oaks and Mediterranean scrub. The short, well-marked approach path starts from the provincial road and allows visitors to reach the base of the waterfall in under twenty minutes.
The limestone walls of the Tacchi di Ulassai offer over 300 sport and trad climbing routes, with grades ranging from 5b to 9a. The compact rock, long vertical slabs and overhanging roofs attract climbers from all over the world. The main crags are accessible on foot from the village in under an hour. For those approaching for the first time, certified local guides offer courses and accompanied outings.
A loop trail that climbs onto the Tacchi plateau and offers sweeping views over the village of Ulassai and the entire Ogliastra valley. On clear days the panorama stretches as far as the Gulf of Arbatax. The path crosses highland pastures, twisted junipers and rocky outcrops, with opportunities to spot golden eagles and mouflons. Recommended in spring and autumn.
Near Ulassai stretches a dense forest of holm oaks, yews and strawberry trees that offers pleasant walks in the shade even on the hottest days. The area is frequented by several species of birds of prey and represents a well-preserved woodland ecosystem. A nature loop trail, marked with information boards, illustrates the local flora and fauna.