In reply to Lois Paixao's question. If you go to the first choice holiday web site there is a selection of photo's of the Astir Palace that my give you an idea.
Jeanette we are going to Laganas on 6 August,the Olympia is about 1 mile from the beach although just a few metres north of the main drag of bars, from looking at this web site there appears to be about 4-5 clubs and loads of music bars. Hope this helps.