78704, it's more than Barton Creek.

Comments: Blunn Creek Preserve is an enjoyable hike in the heart of South Austin. Less used than its 78704 neighbor, Blunn Creek offers a quick get away for people living south of the river. Plus, because it is less known than Barton Creek, hiking the trails can be more relaxing; you won't find bikers zooming by every two seconds. The trails are very well marked, except for a few in the northern part of the preserve, which allows for easy hiking. The Volcanic Overlook is the best view in the preserve. Suprisingly, the view from the overlook is not congested with houses and other structures; there is a great view of St. Edwards Univeristy, which sits on an extinct volcano, plus you get an excellent view of the hills to the west. When hiking in from the south, you'll see red volcanic ash on the trail, just before you reach the overlook. Check it out while you can because it has diminshed significantly in the last few years. The vegetation in the preserve is largely regrowth, but that's o.k., considering the ever growing IH-35 is less than a half of a mile away; but don't fear, while hiking in the preserve you'd almost never know it.