Go about three miles to Warren Dunes State Park, that will be on your left - can't miss it. The road will wind a bit when it opens up to Mount Baldy, a huge sand dune. Park here if you want a shorter walk to the creek. The second parking lot puts you more into the action when you're not skimming, okay, near the women. The reason Van Buren is nice is it usually isn't crowded, the waves don't break as early, and there are lots of little tide pool type puddles that are great for skimming along the coast.
North Beach is pretty much the proving grounds for a lot of young skimmers.
Most of them use the 'Set the board down and run at it' method, rather than throwing. It's a good place for a little relaxing skim. To get to North Beach head into the town of South Haven on M-43 and take the drawbridge across. Take the first left and follow it until the signs show you where to go. As for Van Buren State Park, you'll definitely want to get a map, because it involves quite a few country roads.