Great question! In fact, I have often wondered where it may be best to go should one wish to learn how to throw, and often more importantly catch, a boomerang. Regardless of location, it is ideal to start by acquiring a set of visual instructions. There are countless videos and books that will show you the step by step guide to throwing a boomerang. Once you have reviewed the necessary steps to accurately throw the boomerang, the next best step is to find a large open field, or park. Like most any hobby, practice will make perfect – so get out there and throw!  One additional suggestion, below is a link to the North and South American Boomerang directory. Here you will find further instructions, grounds, catalogs and more.  http://www.flight-toys.com/boomerang/america.htm