Hello,
Some of the most beautiful, sparkling clean, wonderful blue seas are in Greece. I do all the production and location scouting for Mykonos. I have no doubt in my mind that you will get the best shots here but I can not guarantee that the water will be warm. If it was a little later or earlier it would be fine but February is smack in the middle of cold temperatures here. In any case please feel free to check out my website http://www.locccations.com and specifically under “beaches”
I look forward to working with you even if not now sometime in the future.
Please feel free to ask me any questions.
Thank you & Kind regards