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Slacklining – A Boulder Outdoor Activity

Slacklining Regulations in Boulder

Now that summer is winding down Boulder, people young and old want to spend as much time as possible outside enjoying not only the beautiful views of the Flatirons but also the many city parks. One of the most fun activities you can enjoy at the local parks is slacklining. Think of it as small-scale tight-rope walking! Here is what you need to know to have fun slacklining in Boulder.

Slacklining is the act of balancing on a length of flat webbing that is tensioned between two anchors (trees). It is conditionally allowed in the City of Boulder and, so long as you follow Boulder’s rules these guidelines, it will be fun for everyone involved.

  • Don’t take yourself too seriously.
  • Slacklining is only allowed on designated trees in designated areas and only during park hours. Here is a link to an interactive map provided by the City of Boulder. Slacklining can be damaging to trees that are not big enough if using them as anchors. And be sure not to anchor a slackline to anything else in the park other than a tree!
  • Anyone slacklining assumes all risks associated with slacklining, so be careful.
  • All slacklines must be fixed temporarily and attended to the whole time they are up. Any unattended slackline may be removed.
  • This is a BIG ONE! All slackliners must use tree protection material between the tree and the line that is fixed to the tree. Material must be at least 1/4 of an inch thick and at no time should any cabling, wires or lines be in direct contact with the bark of the tree. Park trees are for everyone to enjoy, let’s keep them beautiful.
  • The slackline may not be more than four feet high at the middle when someone is on the line. So basically, don’t turn your day slacklining at the park into a tightrope walking event. This is low to the ground balancing activities only.
  • The slackline may not obstruct the uses of the park, sidewalks, buildings, roads, streets, playgrounds, bikeways, water features, sport courts, bike racks, handrails, art objects, fences or light poles. City of Boulder parks are open to the public and your enjoyment should not reduce the enjoyment of others. Be respectful of public space.
  • If you want a really long slackline because you can just balance so well and walk on a rope like you are strolling down the sidewalk you need to put a visible safety flag on it. Safety flags are required on all slacklines that exceed 50 feet in length.
  • If any slacklining areas shows signs of damage those area will be restricted from use for slacklining purposes. So, take care of the area you use while slacklining so others in the community can also enjoy slacklining.
  • Stunt or tricks while slacklining in a City of Boulder park are prohibited. You will want to save your stunts and tricks for your next private party.
  • Slacklines must be removed for any park permit use or regular maintenance. Basically, you must allow park employees to be able to do landscaping.

Now you understand the common-sense regulations of slacklining in the City of Boulder. My favorite spot is North Boulder Park in Newlands but there are eight other great locations throughout the city.