“Petra By Night” is an after-dark guided excursion into the ancient city that adds an entirely new dimension to your experience of the place; the candlelit walk, leaving the lights of Wadi Musa behind to enter the pitch-dark valley in silence (talking and mobile phones are banned), is magical. Nothing can match the atmosphere of walking through the Siq at night, with only the light of candles placed every few metres to guide the way. The climax comes as you reach the Treasury plaza, where candles throw flickering shadows onto the great facade as a bedouin musician plays on a pipe. The magic lingers while tea is served and you listen to a story told by a local guide.If you have purchased a Jordan explorer pass online this doesn’t cover Petra by Night, the cost is 17JD The Jordan explorer pass  covers your entry visa 40JD and many other Jordan’s historic sites. The Jordan explorer pass needs to purchased before hand. http://jordanpass.jo/