The Nuraghe Osalla (or Osala), also known as Nuraghe Gulunie, stands above a small promontory overlooking the cove and beach of Osalla.
This is a single-tower monument built with square basalt blocks. Access to the inside is blocked by crumbled material from the upper part.
The site can be reached from Orosei along the road leading to the beach of Osalla di Orosei. Almost at the end of the road, take the fork on the right for the Agriturismo Gulunie. After the hill, turn left into a dirt-track road. Park here and continue on foot along the most trodden path towards the sea.