dont buy nakhla there!!! i heard of two different guys, who've been in two different parts of the country. they bought nakhla there and it was just sawdust ... nakhla in turkey = fake!
you have to go to the city and buy Serbetli (dont name it serbetli, say sherbetli (-> Ş
erbetli). its one of the best oriental brands of shisha you can get! i love it