If you're searching for a spot closer to Austin, it doesn't get much better than McKinney Falls State Park. This unassuming gem is located between I-35 and Austin-Bergstrom Airport. Travel time from central Austin is mere minutes.
McKinney Falls was named an official Texas State Park in the mid-'70s. It's located around the confluence of Onion and Williamson Creeks. After some health concerns due to run-off from a wastewater treatment facility cropped up in 1981, swimming was banned for the next twelve years. Since swimming re-opened in the park, McKinney has become an aquatic retreat for many Austinites, no matter the season.
Unfortunately, this season hasn't been too kind to McKinney Falls. Upon entering the park, you'd be wise to notice the posting indicating that “Creek levels are low. There will be no refunds.” While this may scare some folks off, there's plenty of fun to be had within the park. Just be sure to grab a map from the park attendant. McKinney Falls is a large park and if you've never been before, the reference material is pretty handy.
Especially since getting to the water is a bit of a trek. There are two main aquatic attractions within the state park long Onion Creek. The first is the “Upper Falls.” These (generally) micro-majestic falls are located roughly a mile east by north from the park's entrance. The second big attraction for McKinney is the “Lower Falls.” These are located just south and a bit east of the park entrance. The water levels are low, however, so both sites aren't exactly running at full strength. Despite this, there are still pockets of pleasure populated throughout the park. They just require a bit of exploration...and perhaps a modicum of fortitude.
Though the biggest draw for most are the beautiful upper and lower falls along Onion Creek, the park is a big draw for cyclists and hikers. With around four miles of multi-use trails, it's a great place to expend a little athletic energy before sinking into the placid waters. So put that spirit of exploration to good use, then unwind in the waters.
McKinney Falls is a popular campsite. As such, there is a plethora of great spots to picnic during your outing. These spots are clearly marked on the park map, so remember to grab it upon arrival.
Entry to the park costs $5. The park is open seven days a week, year-round, but the entry gates are only open from 8 a.m. to 10 p.m. daily. You can visit here to get more information about fees, services and amenities at McKinney Fall State Park.