To get to the first few cliffs, Start out at Grapevine Mills Mall in Grapevine, TX. Get onto F.M. 2499 in the direction of Flower Mound (away from the highway). It wont be too long before you get to a big intersection with Lakeside Dr. Take a left onto Lakeside Dr. and follow it for a bit. It has a few of those huge circles in the road like they have in England and Singapore, but just keep heading away from where you came, and you should be ok. You'll get to a point where theres a gas station on your left. You have to take the first right (the only right since theres a huge dam wall a few hundred feet down the road). Just follow that road to the end (you'll be inside Rock Ledge Park). Find yourself a nice parking at the very end and the cliffs will be right there. You can also follow the biking trail around the edge of the lake for a bit and you'll find the higher cliffs (25 to 30 feet).