Ferry Timetables:

 
At the period of the Donoussa Trail Running (October 2018) the timetables are as follows:

Piraeus – Donoussa: every Monday, Wednesday, Thursday by Blue Star Ferries.
Departure from Piraeus at 17:30 pm.
Arrival in Donoussa at 00:30 am (01:30 am on Thursdays)

Donoussa – Piraeus: every Tuesday, Thursday, Friday by Blue Star Ferries.
Departure from Donoussa at 07:45 am.
Arrival in Piraeus at 15:15 pm.

Alternatively, via Naxos by the local boat Express Skopelitis:

Naxos – Donoussa: every Monday, Wednesday and Saturday at 14:00 pm.
Arrival in Donoussa at 18:00 pm.
Donoussa – Naxos: every Monday, Wednesday and Saturday at 08:15 am.
Arrival in Naxos at 12:00 noon

Especially for the Donoussa Trail Running event, there will be an extra boat service provided by Blue Star Ferries on Sunday the 21 of October to Piraeus, in order to accommodate the participants.

Also there will be an extra boat service provided by Expresse Skopelitis on Friday the 19 of October, in order to accommodate the islanders.

More details to follow shortly!