The 17.000-ton freighter, called the Wise Honest, was stopped in Indonesia last year after it was found to be carrying coal
Despite the latest setback, CEO Boyan Slat is adamant this is a speed hump rather than a roadblock
The full details off the possible discovery will be announced at an "event" on Friday
It arrived as part of celebrations for the 190th anniversary of the commencement of Greek-Russian relations
Are they...rehearsing something?
The boat has been on the route from Kalymnos to Turgut Reis and Alikarnassos for years, and there has never been a problem
After 104 years since its sinking!
The ship, Achaeos, usually ferries passengers between the Saronic island of Aegina and the mainland port of Piraeus
The activities in the immediate few weeks will focus on whether there are any archaeological finds in the sea and also to figure out where to drill
It has been stranded and abandoned on the beach of Valtaki near Gythio, since December 1981