Spent 2 months in Kos Town in 2006, visited for a week in 2007 and it was awful having to leave after a week. I am returning in July 08 for a month or so and cant wait, it's such a brilliant place. If you want to completly chill out, this is possible or if you want mad nights out this is possible too, thats the beauty of Kos.  I visited Tigaki, Kardemena, Zia, Therma, Lambi in 2006, all wonderful places, Zia is a little mountain village, the views are spectacular, well worth a visit. On bar street in Kos Town be sure to visit Heart Rock, Saloon Tex, Cactus & mollys. dancing on the bar til after 4am is the normal in these places. Head to Jackons beach during the day where there is plenty of action. I have stayed in the Anastasia hotel whick is about 10/15 min walk fom the harbour & bar street. everyone is so friendly in kos, ,ake sure you do some boat trips, great value for money. Kardemena is absolutuely crazy, was only there on 2 occasions & am looking forward to returning for a couple of nights out this summer! I have made good friends from my stay in 2006 and cant wait to spend a few weeks with them again, if you go to Kos you are guaranteed to return.