Our Y facilities are open to Y members and paid program participants only. 

Please check our reopening guide for details before you arrive.



The pools are now open for open swim, lap swimming, water fitness classes and private swim lessons. Registration is open for July and August group swim lessons.

Lap swim and water exercise classes are available by reservation only.

Open swim is available for reservation only through Appointment Plus.

Please review our reopening guide so you know what to expect.

mapleton y pool in boulder

Welcome to the Mapleton YMCA Pool in the heart of beautiful Boulder, Colorado. The Y has been teaching Boulder area children, teens and adults how to swim since the early 1900s. That’s right: Our first Boulder swimming pool opened in 1908. But things have changed during the last century. Today, the Mapleton Y pool in Boulder offers a wide variety of programs and opportunities for water safety, exercise and recreation. We welcome Y members and Boulder residents to join us at the Mapleton Y indoor pool for swim lessons, water fitness classes and lap swimming. If you’d like to learn more about our water exercise classes, you can visit our schedules page to check out classes like Aqua Fit. On the schedules page, you’ll also find times for lap swimming and open swim. Or check out our YMCA Swim Lessons page to discover how the Y can teach you, your child or your teen to be safer and more confident in the water. And feel free to stop by the hot tub or saunas to relax after your workout or swim. The Mapleton Y is also home to the Head Start Safety Around Water Program

Pool Rules & Policies

Mapleton Y Pool Hours

Mon-Fri: 5:00am-9:15pm
Sat: 7:00am-7:45pm
Sun: 8:00am-7:45pm

Pool Schedule



Aquatics: Mapleton Y

303-443-4474 ext. 2501
Email Mapleton Aquatics