Hi Spartacus
Just in case no-one comes up with an answer for you, did you know that Yianis has a website? The Emilianos walk is mentioned but you could perhaps email him via the site for confirmation.
http://m.symi-excursions.gr/#_=_We used to love that walk too. Sad to say that arthritic knees and general old age now makes it an impossibility. Never mind - we still can and do enjoy regular trips on the Poseidon. Roll on 14th September
On the subject of trip boats - I've heard there is now a third boat doing daily trips. Indeed, it can be seen moored up next to Lucas' taxi boats on the web-cam. Does anyone have any information or comments? I wouldn't have thought, with the general economic climate in Symi and elsewhere, that it was a good time to start up a new venture of this sort.
Sue