This rare phenomenon was seen by me on june 13 2013 in Aegean sea near the island Serifos between 17 — 18 hours local time.
The waterspout was seen from the yacht on the distance 2 — 3 miles. It lasted 2 — 3 minutes.
On the pictures the waterspout can be seen as a bright thin line (like rope from the heavens 🙂 coming down from the clouds to the horizon. Two bright points seen to the right from the waterspout are the sailing yachts.
On the picture clearly can be seen the waterspout that pics the water spray from the sea surface and rather close to it the yacht going down the wind under full sales (brave guys).
And here is my video of that waterspout.