When you take the Great Island Trail in Wellfleet, you can either go in toward the woods to the Tavern and then out to Jeremy Point or you can hike over the trails in the dunes and go straight to the beach. (Click on blog link for more photos.)
Either hike is just spectacular! You can see the expansiveness of the beach in the first photograph. In the 2nd and 3rd photos you can see the trails over the dunes that you can take to get to the beach.
Whatever you choose on this trail is a win/win for you! It is all breath-taking!