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Join us on the water at Union Reservoir!

Hours of Operation

May 27 – September 4
Mon – Fri  9am – 6pm
Sat – Sun   8am – 6pm

Union Reservoir is located at 461 CR 26 in Longmont, Colorado. CR26 is located 1/2 mile North of 119 on East County Line Road. Please ignore directions that take you to the backside of the reservoir or to the sailing club. We are located in the blue building right across the grass picnic area as you cross over the entrance bridge.

Please plan on a park entry fee of $10/vehicle on weekdays, $12/vehicle weekends, $8 per person for our Full Moon Paddles, annual passes also available.

We have paddleboards, kayaks, and XL paddleboards available to make your experience amazing and memorable!


If winds exceed 12 MPH, or if there is any lightning in the area, activities will be delayed in 30 minute increments and will be assessed on an on-going basis.

If activities are on hold or cancelled, we will issue a credit to customers that will never expire.

Union Reservoir Water Sports and Activities