Caves
Donoussa has two caves that can be visited only by boat. The first is Fokospilia cave with its turquoise waters. The cave is said to be the home of seals during the winter and therefore the Greek name Fokospilia means “cave of the seals”. Fokospilia cave can be found on the eastern side of the island.
The other cave is on the north western side of the island, at the bay of Ksilobati and is called Tihos cave. There are extraordinary stalactites hanging inside this cave.
Church of Stavros (Holy Cross)
The Church of Stavros gets its name for the resurrection of the Holy Cross. The church was constructed at the end of the 1800s. The first church fell and was rebuilt in 1902 where it currently stands. The church is built in Cycladic architecture with blue and white as the dominating colours. Next to the dome is a bell tower with 3 bells.
On the 14th of September a festival is held for the island’s patron saint.
Church of Panagia (Virgin Mary)
The small church of Virgin Mary is built on top of a hill in the village of Stavros. The church was built in 1892 and it has a stunning view over the island. Sunsets are amazing from there.
On the 15th of August they have large celebrations.
Church of Agia Sofia
The church of Agia Sofia is located in the village of Mersini. On 17th September they celebrate the church’s name day.
Hiking
There are a few hiking trails on the island that joins the four villages, Stavros, Mersini, Messaria and Kalotaritissa with each other.
Every year since 2017 a Trail Run is organised, called the Donoussa Trail Run, where runners from all over the world visit Donoussa to run.
| TRAIL NUMBER | ROUTE | TIME / RETURN TIME | KILOMETERS | ALTITUDE DIFFERENCE | DIFFICULTY |
| 1 | STAVROS – KALOTARITISSA | 75 min / 90 min | 4,4 | 258 | *** |
| 2 | KEDROS – MESSARIA | 30 min / 25 min | 1,1 | 130 | Â * |
| 3 | MERSINI – LIVADI | 25 min / 35 min | 0,9 | Â 162 | Â ** |
| 4 | KEDROS – KATO MYLOS | 40 min / 35 min | 1,8 | Â 80 | Â * |
| 5 | KAMPOS – LIMNI / ASPROS KAVOS | 40 min / 40 min | Â 2,1 | 50 | Â ** |
Upper and Lower Windmills
There are two windmills on the island which can be found at the beautiful settlement of Messaria. They are called Pano Mylos and Kato Mylos and are not in operation anymore. But it is still an interesting site to visit.
Ruins of a Geometric Settlement
Below the lower windmill, at Vathi Limnari you will find the ruins of a Geometric Settlement.
Diving
One of the impressive attractions of the island is the shipwreck of the German Warship of Orion. The shipwreck can be found at the bottom of the seabed of the bay of Kendros. It is an ideal spot for diving and snorkelling.
