In case you don’t want to rent a car, you have the following options for your transportation in Syros:
1)KTEL buses: Syros has got a very well-organized bus service that gives access to any tourist destination on the island. Buses with different destinations leave every 30 minutes in 24-hours basis during the summer months.
2)Buses: Buses with different destinations leave every 15 minutes.
3)Taxi:There are 2 taxi stands: the one is in the port and the other near the hospital. Taxis are available in 24-hours basis. From Hermoupolis to Galissa (9km) and to Vari (8km) approximately 10€. You can hire a taxi for an hour for 25€.