This is a night cache therefore you will need a tourch (cell phone flash will do) As you arrive at the co-ordinates you should notice the start of your journey as is it marked by reflectors. Follow the reflectors till there are no more, you have now reached ground zero 
Once at ground zero shine your tourch around till you find the All Stars hanging in tree , close by there will also be a fence post with the all stars symbol in the middle of it . Its then up to you to find the cache .
yrg gur yvtugf thvqr lbh ...