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Boulder Triathlon Club Swimming Activities

Swimming Options in Boulder


There are many swim options in Boulder, from open water swimming during scheduled hours at the Boulder Reservoir, to many Masters Groups that many members are a part of. Additionally, Boulder Triathlon Club receives discounts to our club sponsors' activities such as the seasonal Boulder Stroke & Strides at the Reservoir, which is a great way to get experience with mass swim start open water swimming!

Open Water Swimming in the Region


BAM Masters Boulder Reservoir (Boulder, CO) (Limited areas and access)

Union Reservoir (Longmont, CO)

Mile High Grant Ranch Open Water (Littleton, CO) (Full open water swim times)

COMSA Chattfield Reservoir (Littleton, CO) (Full open water swim times)






Masters Classes in the Boulder Region


Indoor Swimming Masters


Boulder Aquatics Masters -


Flatirons Athletic Club -


Colorado Athletic Club -


RallySport Health Club -

Open to Ideas, Sponsors & Volunteer Coaching


If you happen to have resources to offer our club, or would like to volunteer to do weekly or monthly free group swim coaching to Boulder Triathlon Club members, or would like to become a sponsor of Boulder Triathlon Club offering a free facility in exchange for a sponsorship, please contact our Club Vice President Charles Garabedian.


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