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Boulder Reservoir

Boulder Reservoir is a pet-friendly destination in Boulder, CO. Leashed pets are welcome seasonally at this popular recreation area, which includes swimming areas, fishing and wildlife viewing. On the North Side of the lake, dogs can take the short hike from the Open Space parking lot down to the beach and then run for miles. On the South Side of the lake, from Labor Day until mid-May, dogs are allowed to play on the Reservoir’s “people beach." Dogs are prohibited from May 15 through Labor Day. Visit Website

Or call (303) 441-3461 or email parks-rec@bouldercolorado.gov for more information.


BringFido Guest Rating

Boulder Reservoir has received a rating of 4.2 out of 5 bones by 5 canine critics on BringFido.

  • Kaylee
    Jun 8, 2021
    Dogs NOT allowed in off-season.

    Drove over an hour to be told no pets are allowed off season.

  • Lynne
    Sep 2, 2019
    Dog Swim On North Shore In Summer

    Go past the main entrance for about a mile and you will see a small parking area and short trail to the water. Free to visit and park.

  • Sarah
    More than a year ago
    My number one place to bring my dog

    The part of the reservoir is actually called Coot Lake I believe. Everyone brings their dogs, some on leash but most off leash. Gorgeous views of the mountain and clean swimming water. They even provide you with poop bags when you walk through the trail! My favorite place to spend my days off with my pup

  • Hunter
    Jun 21, 2018
    North Shore OK all year round; South shore only in winter!

    There are two parking lots for Boulder Res. The north shore is the free area, open to dogs year round. South shore is free and open to dogs in winter, but requires an entry fee and is closed to dogs in summer. Dogs can be off-leash if they have a Boulder Voice and Sight tag.

  • Leslie
    More than a year ago
    Boulder Reservoir

    Someone trying to protect the area from newcomers must have called it a "leash" area - this is a green tag area, I think the best in the world, and dogs with green tags can run and swim for miles

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Traveler Photos

We dug up 2 pictures of dogs at Boulder Reservoir.

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Boulder Reservoir