My family are flying out for our wedding in August (23rd to the 30th) but 2 of them are flying from London and the other 4 from Belgium!!! So a package deal is out. Does anyone have a studio sleeping 2 and an apartment sleeping 4 for rent and have availability that week.

What area of halkidiki are you looking for

You could try the Argos Hotel in Siviris. That has lots of nice apartment rooms and in a nice quiet area which is not too far from Kallithea. They have a website. We stayed there last year (we had stayed previously a long time before) and it was lovely. Nice clean rooms, pool and I think it was 35 euros a night in July. Will try to dig out details if you are interested, let me know.