Happy trails to you.

SWEAT (and TASTE)
The Great Taco Run
What: Take a 5K, 10K, or 10-mile jaunt ($30-$50) to find live music and fresh tacos at the finish line.
Why: All for Friends of the Katy Trail and the Trinity Strand Trail.
When: Sun., 7-10:30 a.m.
Where: Runner’s Village, Museum Way, at Victory Park Ln. Register (by Sat., 7 p.m.) at thegreattacorun.com.

SHOP
Junkadoodle Fall Flea
What: Find affordable costume jewelry, vintage, and shabby-chic home decor at the casual, anything-goes indoor-outdoor market.
Why: Free hot dogs, soda, and water are served from a retro trailer.
When: Sat., 9 a.m.-6 p.m.
Where: 4402 W. Lovers Ln. (214-350-5755).

PLAN
Give a Dog a Home Gala
What: Snag spots at a seated dinner that includes cocktails, musical acts, and auctions to support the Collin County Humane Society.
Why: Every penny helps cover CCHS’s new adoption facility.
When: Oct. 13. Sat., 6-11:30 p.m.
Where: The Dallas World Aquarium, 1801 N. Griffin St. (214-720-2224). Tickets ($150 each; $250 per couple) at collincountyhumanesociety.org.

BEND
The PilatesBarre
What: The popular Pilates biz opens a second Big D locale and retail space with hair products and exercise gear.
Why: To celebrate, the studio is dishing one-month unlimited memberships for $99 (reg. $149).
When: Class schedule at thepilatesbarre.com.
Where: 11909 Preston Rd., ste. 1412 (972-239-2626).

Photo: Phil Roeder / Getty Images