Mountain Swim Series

Mountain Swim Series With the aim of promoting fitness and health through open water swimming.

The Mountain Swim Series offers flexibility, competition and an overall enjoyable swimming experience. We have FIVE open water swims this year, and we can't wait to see you out there.
-Sunday June 5th -- Chilly Chatfield
-Sunday June 19th -- Solstice Sunset
-Saturday July 16th -- Carter Lake Crossing
-Sunday July 31st -- Chatfield Classic
-Saturday August 27th -- Castle 5k/10k
Register Here: https://mountainswimseries.com/

All events will be supported by safety watercraft, lifeguards, and paramedics/EMTs.

Solstice Sunrise Swim will be the first swim of the 2026 Mountain Swim Series on Sunday, June 14th! At this event we hav...
02/04/2026

Solstice Sunrise Swim will be the first swim of the 2026 Mountain Swim Series on Sunday, June 14th! At this event we have the 500YD swim (ages 21 and under), 1.2 and 2.4 miles!

Early bird registration will end March 15!
https://mountainswimseries.com/events/solstice-swim

Happy New Year swimmers! 2026 early bird registration is open! We have a lot of swim events planned for this year, so ch...
01/17/2026

Happy New Year swimmers! 2026 early bird registration is open! We have a lot of swim events planned for this year, so check out our MSS site or registration page for more info:

https://mountainswimseries.com/

Congratulations to our two 2025 Overall Series Winners! Your customized swim robes will be sent this week! Thanks Lemon ...
09/24/2025

Congratulations to our two 2025 Overall Series Winners! Your customized swim robes will be sent this week! Thanks Lemon Slice Printing for your embroidery work!!

Thanks for everyone that participated in our 2025 series this year!! We hope to see you again next summer!Big thanks to ...
09/15/2025

Thanks for everyone that participated in our 2025 series this year!! We hope to see you again next summer!
Big thanks to all of our volunteers who came out and supported the swims throughout the summer.

Thank you to everyone who swam and volunteered at Willow Creek Reservoir!!The final MSS Swims are coming up at Wellingto...
08/04/2025

Thank you to everyone who swam and volunteered at Willow Creek Reservoir!!
The final MSS Swims are coming up at Wellington Lake! We have the Castle 2.5K/5K/10K and the Swim/Run the following day. Lots of camping options when you register as well!
https://mountainswimseries.com/events/castle-10k

The Willow Creek Reservoir Swim is THIS SATURDAY August 2nd. We would love more volunteers to sign up! Sign up here: ht...
07/30/2025

The Willow Creek Reservoir Swim is THIS SATURDAY August 2nd. We would love more volunteers to sign up!
Sign up here: https://mountainswimseries.com/volunteer-signup

Willow Creek Reservoir Swim offers a 1-mile, 2-mile, and 5k option outside of Granby, Colorado!

Registration for Carter Lake Crossing closes on Wednesday July 16th at 11:59 PM. There are only a few spots left. As you...
07/13/2025

Registration for Carter Lake Crossing closes on Wednesday July 16th at 11:59 PM. There are only a few spots left. As you know, we are limited by a parking cap. If you log on and registration has closed due to reaching the maximum number of vehicles, please send us an email BEFORE Wednesday
Can't swim? We always need volunteers! Sign up on our website!!

Next up in the summer line up:July 19th Carter Lake CrossingAugust 2nd Willow Creek ReservoirAug 23rd Castle swims (camp...
06/25/2025

Next up in the summer line up:
July 19th Carter Lake Crossing
August 2nd Willow Creek Reservoir
Aug 23rd Castle swims (camping options available)
Aug 24th Wellington Swim Run Challenge!

Congrats to all of the swimmers who came out to Solstice Sunrise for the first swim of the series today! THANK YOU to al...
06/23/2025

Congrats to all of the swimmers who came out to Solstice Sunrise for the first swim of the series today! THANK YOU to all of our volunteers and safety crew!

We'll be doing a flash sale of all our previous Swim Shirts to clear out stock, bring cash to take some comfy swim shirt...
06/21/2025

We'll be doing a flash sale of all our previous Swim Shirts to clear out stock, bring cash to take some comfy swim shirts home on Sunday!

Looking forward to seeing everyone at Solstice Sunrise Swim this weekend! Check you emails for your Swimmer Info and vol...
06/21/2025

Looking forward to seeing everyone at Solstice Sunrise Swim this weekend! Check you emails for your Swimmer Info and volunteer emails! Big thank you to everyone who signed up to volunteer this weekend - you help make our swims possible!

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Denver, CO

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