During the summer, buses run daily from Agios Kyrikos to Evdilos, Armenistis and Raches, including many other villages along the way. The central bus station is in Agios Kyrikos, just above the port. This is the cheapest way to travel in Ikaria.
Taxi ranks are available in the central spots of Ikaria, such as the port of Agios Kirikos and the port of Evdilos. They are more expensive than a bus ticket but they can take you to your destination faster.
There are few car and motorbike rental agencies in Agios Kyrikos, Evdilos and Armenistis. Probably a car is the most convenient way to explore the island, but drivers should be careful because roads in Ikaria are narrow and winding.