The island of Kea is about 20 miles slightly south of Cape Sounion with Voukaris being the most obvious anchorage on the NE coast. It's quite a deep bay and we anchored in 10m clear of the local moorings and with a couple of other boats.
By the time we went ashore to explore and eat around 20.00 there were 10 other boats anchored, which gave everyone reasonable space. The quay was jam-packed with small motor-boats which had clearly come from the mainland for a Friday night party. We had a reasonable meal and enoyed the evening.
The next day was completely different. The same hoard of small craft started arriving during the afternoon, but then then the charter boats started arriving, and they didn't stop. Even after nightfall (when they are not insured) boats were charging into the anchorage. We ended with around 30 boats crammed into a a deep bay with a high risk of anchors dragging. If that wasn't enough, a huge motor yacht around 180 ft decided he wanted to be on the quay amongst all the small boats. He dropped his anchors right off our stern, dragged the chains under our boat and hung off the quay until he intimidated some boats to go. We've never seen arrogance and stupidity like it. One day he will crush someone's boat or cause real injury. To make it worse he was flying a red ensign! He did get clear expression of our view and of his behavior as his topside passed us a few metres away!
Motor Yacht 'Bilmar' forces himself onto the quay
Luckily it was a very still night. We realised, when we considered it, that if you pick up your charter boat in Lavrion or Athens there is only really one island you can reach on the first day - Kea, and only one anchorage area......where we were. We made a mental note not to be there again on a Saturday or a Thursday night (when they will be returning to base).