Not gonna make a big post about Milos as we were there 2011. Our cameras and phones were not up to standard by then!
From what we can remember, the island is quite large. You will need a minimum of 5 nights here to get to see the whole place and you will definitely need a car to take you around.

There are many different beaches all around the island but the most famous must be

Saraniko beach

with its unique and distinct look. Almost bright white rock formations.