Let's go back to the good ol' days of your youth for a moment. Remember when you were a kid — your energy unlimited, the great outdoors your oyster? Remember when you could play all day and never get enough?

Fast forward to, well, right now. What if we told you that you could recapture your inner child and swap lives with him for one day? It's possible.

What do you get when you combine your adulthood with a day in the woods and — gasp! — childlike fun?

You get adventure racing — the best day you've ever spent doing your body good, that's what.

Or, in other words, this Saturday's Huntsville Hammer adventure race 70 miles north of town.

Now in its eighth year, the locally run and locally hosted Huntsville Hammer makes the season between warm summers and cool winters one to look forward to. With three race lengths — two hours, six hours, and 12 hours — featuring the disciplines of mountain biking, kayaking, trail running and orienteering, it's easy to understand why the Hammer is one of the most anticipated autumn races in the Houston area.

"We are probably the biggest adventure race in Texas," said Wade Woehrmann, race director and owner of Texas Adventure Racing, the Houston-based race company that hosts the event. "The race has uncannily found its way to a beautiful fall day every year, and the location is hard to beat."

Nestled in the lush and leafy forests of Huntsville State Park, this beginner-friendly adventure race — think triathlons, but add kayaking, add teammates, go off-road, and subtract swimming — has something for everyone.

"There's a large portion that it's their first time out," Woehrmann said. "It's a great race for beginners because it's close to town. We have the sprint leg, which is a flagged run, so there's no navigation needed. There will be several fun special challenges throughout the race."

"Special challenges" is adventure racer code for "mystery events" — unconventional skills tests outside the biking, paddling, and running genres that'll really make you wonder whether you're having too much fun to call this "exercise."

For Houstonian Leanna Gatlin, the Hammer will be her first adventure race.

"I did running races and triathlons before starting adventure racing this year," said Gatlin, who trained with a local adventure racing club, Houston Fit Adventure Racing, this fall. "I'm looking forward to being in the woods, playing and having fun. I expect to have fun, be tired, and possibly scared."

But there's nothing terrifying about running around in the woods, is there?

Not for beginners, anyway. "Seasoned adventure racers will find themselves challenged," Woehrmann said. "The race director does have to temper his penchant for setting out challenging courses, though."

We're not scared if you're not.

With almost 200 racers already registered for Saturday's competition, this year's Hammer should prove to be one of the largest to date.

Are you ready to take your exercise out of the gym and off the road? The race begins at 8 a.m., but you'll want to be ready to go by the pre-race meeting at 7:30 a.m.

Race day registration will be available. Why not put a little adventure in your life?