A varied 13 km guided walk across the Tacchi di Osini that visits two nuraghi and two caves, including the unique Serbissi nuraghe built over a cave. Expect limestone plateaus, short scrambles, and panoramic views across Ogliastra.
More ways to explore the area's outdoor wonders
You step onto the Tacchi di Osini and the plateau answers with wide, wind-brushed grass and limestone ledges that push your eyes to the horizon. The trail moves easy at first—rocky footpaths and low garrigue—but every turn opens a new frame: a stone nuraghe perched above a hollow, a cave mouth dark against bright rock.
Difficulty
moderate
Duration
6–8 hours
Fitness Level
Suitable for walkers in regular moderate fitness; expect steady walking over uneven ground and short steep sections.
Wildlife
History
Nuraghi are Bronze Age megalithic towers unique to Sardinia; Serbissi is notable for being constructed over a natural cave entrance.
Conservation
Stay on marked trails to protect fragile karst soils and archaeological features; avoid touching cave formations and pack out all waste.
Reserve your spot on the Excursion to the Osini Heels - Tour of the Nuraghi today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring a reliable headlamp
Cave interiors are unlit and uneven—use a bright headlamp and spare batteries to inspect chambers safely.
Carry 2–3 liters of water
The plateau is exposed and windy; hydration is critical even on cool days.
Wear grippy footwear
Rocky and occasionally loose terrain benefits from shoes with good traction and ankle support.
Start early in summer
Begin at first light to avoid peak heat and to catch softer morning light inside caves.
Sturdy hiking shoes
Provides traction on limestone, scree and short scrambles.
Headlamp or torch with spare batteries
Needed for safe exploration of Serbissi cave and other dark passages.
Water reservoir or bottles (2–3 L)
Keeps you hydrated on the exposed plateau where shade is limited.
summer
Light windproof layer
Wind can be strong on the Tacchi—an outer layer adds comfort without bulk.
spring