Sifnos is the ideal island for those who like walking. The fans of walking will have the chance to follow many alternative paths. Get a map of the paths from the island’s stores and start exploring the island or if you need a guide, contact Mrs Ronia Anastadiadou (Patouhia) or visit to the travel agencies of the island to get information on how to participate in the organized walks that take place! Here are some of the walks that we recommend:
You can visit the Ancient Citadel of Agios Andreas with the homonymous church on its top, which has been built in 1701. The climbing to the top is not at all tiring, it takes about 25 minutes and it is realized through a narrow spiral path.
The view from the highest spot of the hill is magic and it makes it up to who decides to visit it. Here, there is one of the most important archaeological sites of Sifnos. The archaeological findings here show that the place has been constantly inhabited from the Mycenean to the Hellenistic times. The excavations have brought into light a big part of the Mycenean wall of the 12th century B.C. in that wall there are ruins of five buildings, possibly residences. The site is open for the public every day till the setting of the sun. You can also visit the arcaeological area by car.
Walk on the path which starts from the small church on the road to Vathi, "Agia Marina of Kade", pass through "Agios Ioannis the Mavro Chorio"
which took its name after a fire which burned down the whole area during the antiquity to get finally to Vathi.
Climb up to the Monastery of Prophitis Helias, the highest monastery of Sifnos which is situated 695 meters from the sea level, by taking the path that starts next to "Moni Fyrogion".
While climbing you can admire the beautiful nature of Sifnos in its virgin form, since the entire route passes through an area which is protected by the project Natura 2000. When you arrive at the Monastery, and you face the panoramic view of the island you will be struck dumb. While you are at the Monastery of Prophitis Helias it is worth exploring and admiring the secret rooms, the catacombs etc. 
From the small settlement of Agios Minas, on the road to Cheronissos, take the path which leads to the monastery of Agios Sostis, which is situated near the ancient mines of gold. Here, at the ancient times, they used to extract the ore from which they used to make the golden eggs that they were sending every year to the Oracle of Delphi, where you shall also find the "Treasure of the residents of Sifnos". The view of the Ocean from the monastery is beautiful!
Take a walk starting from Artemonas towards the "Moni of Panagia Poulatis", where you shall discover the wild beauty of its rocks and you will admire the imposing "rock of the killer". From there, take another path along the beach which leads to the magic Kastro. The entire route is easy, therefore if you wish, you can take from Kastro another path which passes through the picturesque agricultural regions and leads to the beautiful and picturesque village of fishermen, Faros. And from Faros, why not taking the short path which starts from "Glipho" of Faros and leads to the ship-shaped rock of "Panagia Chrissopigi", the protector of Sifnos!
However, if you prefer shorter and easier routes take a look at the routes that we recommend.