I'm not from your area so can't help you with any advice there I'm afraid, but you are putting yourself under a lot of pressure to find the dress in 6 days.
If you can, do as much research as possible (like you are doing on this Forum) and if possible try on some gowns in Turkey. At least if they're dodgy, you might at least know if you want slim, big, fishtail etc, to give you a running start.
And try to schedule your last day to be on a midweek day, to give you a chance to get a last minute appointment to give your fav gowns a "second viewing." Shops can be very busy at the weekend.
And like atlast said, you can definitely go to more than 3 if it won't overwhelm you!
GOOD LUCK and congrats on your upcoming wedding!
Yours, Sarah xxx
[This post was edited by sarahjlowe at . ]