In Syria they pay with the Syrian Pound. Always make sure you bring enough cash with you on the trip, as the ATMs don't work. It is best to exchange money with the guide, they knows where good money exchange offices are with a good exchange rate. It is wise to bring Euros or American Dollars. These are accepted everywhere and can be changed easily. For the most recent exchange rate, visit www.xchange.com. Of course it mainly depends on yourself how much you actually spend, but as a guideline we advise approximately € 30 to € 40 per day, which should be enough. If you would like to buy souvenirs, you better bring something extra. Soft drinks usually cost around € 1 and a meal between € 5 and € 15. Tipping local guides is always encouraged. They don't earn much in this part of the world and it often makes a big difference to them. Of course this is according to your own preference.