"Le parc possède une table d'orientation."
Is there another word for "table d'orientation" other than "viewpoint"? It's not a very common word in English. I'm imagining that this park has some sort of hill overlooking some vast expanse. If that's the case then you'd just say the park has a view (usually of whatever you're looking at).
Not exactly like the “You are here map”. A « table d'orientation » is something like that (http://www.planisphere-carto.fr/wp-content/uploads/2008/01/to-la-bruyere.jpg) that you can find to help you locate not yourself but the elements in the landscape. As Sitesurf said, it is like a table, flat and horizontal, and you place yourself behind it. Here is one example, from the side (https://dl.dropbox.com/u/3025762/G0060538-3.png): you would look in the direction of the arrows.