Twin Lakes Open Space
A two-mile lake loop with an off-leash west side and breweries across the street
About this park
Two lakes in Gunbarrel with a two-mile flat dirt loop, clear signage splitting the east side (on-leash) from the west side (off-leash), and multiple shoreline spots where dogs can wade and swim. Avery and Asher breweries sit directly across the way for a classic Boulder-area dog walk.
Amenities
What visitors say
Synthesized from 223 Google reviewsReviewers love the setup: flat mileage, multiple swim access points, and mountain views across the water. The proximity to Avery Brewing makes it a favorite afternoon walk with an obvious post-dog stop.
Best for
Before you go
Off-leash privileges on the west lake require a Boulder Voice & Sight green tag; bring it or keep your dog leashed. The east lake is on-leash only and clearly signed. The full loop is a little under two miles with essentially no elevation gain.