This event only takes place on Mondays, Wednesdays and Fridays. So plan ahead if you want to do it. It costs 17 JOD and is not included in the day pass. Is it worth to do? Well, it depends. People hate or love it. It gets very crowded, which spoils the otherwise fascinating atmosphere that thousands of candles create, but if you come all the way to Jordan just do it and make your own opinion.
There is also a little trick I will tell you to enjoy the atmosphere without the crowd for a while and of course to take some great pictures.
Be there half an our before official entry. Do not wait as told in the courtyard by some guards but go right to the entrance gate (nobody will hinder you). There you wait with 20-30 other people who heard about this until they will let you in 10 to 15 minutes before the official entry. Now go fast. it’s about two km, don’t run as you don’t need to be the very first to get good pictures. Enjoy the scenery in the canyon, but don’t stop until you reach the treasury. It looks really beautiful, illuminated by all the candles.
Now you should have around 20min before the crowd arrives, and boy the will arrive! So be quick and take your pictures with your tripod and your wide angle (you did bring a tripod, right?). Don’t believe the lit up pictures in the net. The face of the treasury is much dimmer than you might think and it’s not possible to make high quality pictures without a tripod. And forget about using a flash if you don’t want to look like a stupid tourist. Did I tell you that there will be hundreds around of them in a short while ;-) ?
When everyone has arrived, which can take a while, some traditional flute songs will be performed for around 15 minutes but it’s way too crowded to enjoy the atmosphere. You can sit, but I recommend staying behind, taking some more pictures with the people. When it’s over, the treasury is lit in different colours but for me that looks way too artificial. Then people start to go back. Stay and take some more pictures in the canyon, behind you they will already start to remove the candles.