When you look at this group of several hundred thousand stars (some astronomers reckon over a million!) it is amazing to think that it is over 25,000 light years away.... and it's still just on the outskirts of our galaxy!
M13 lies in the lower left shoulder in the constellation of Hercules, which itself lies between Bootes, Corona Borealis and Lyra, and is currently best seen in the late evening/early morning in mid northern latitudes.
How to find M13, the Hercules Cluster, located in 'the armpit' of the constellation.
However, do go out and enjoy one of the splendours of the northern night sky, you certainly won't be disappointed!