If you’re a parent in the Denver metro area, chances are swimming is already on your family’s radar, whether it’s summer at the pool, weekend adventures, or mountain getaways. But beyond being fun, swimming is an essential life skill, and the earlier kids learn, the more confident and safer they’ll be around water.
That’s why we’re so excited to introduce Foss Swim School, now open in Castle Rock and Lone Tree!
Who Is FOSS?
Foss Swim School was founded more than 30 years ago by Jon and Susan Foss. With schools across the Midwest, FOSS has helped hundreds of thousands of kids (and adults!) learn not just how to swim, but how to love water.
What Makes FOSS Different?
We know Douglas County families have options when it comes to swim lessons, but here’s what sets FOSS apart:
- Their Swim Path® Curriculum – A step-by-step program that meets kids where they’re at, breaking big skills into small victories that build confidence and mastery.
- Expert Adult Teachers – FOSS instructors aren’t seasonal hires; they’re trained professionals who know how to balance structure with fun.
- Safety + Fun – Every single skill in our program is taught through age-appropriate games and activities, because kids learn best when they’re having fun.
- Purpose-Built Facilities – Our warm-water pools are designed just for swim lessons, making them the perfect environment for learning year-round.
Why Now is the Perfect Time
Consistency matters. Enrolling your child in weekly swim lessons helps them develop habits that stick, setting them up for breakthroughs in skill, safety, and confidence. Swim lessons are best to start right after summer, so kids can build strong foundations in time for next year.
Special Offer for Douglas County Families
To celebrate our launch, FOSS is offering 50% off your first quarter of swim lessons. It’s the perfect chance to jump in and see why families across the country trust FOSS. Spots are filling quickly, so secure your spot today!
🌟 Save 50% off of your first quarter of swim lessons at Foss! 🌟
Promo Code: COFAMILY50
Expires on October 6, 2025, and is valid only for the 2025 Fall Quarter.
Grand Opening Celebrations
Two brand new Foss Swim Schools are making a splash in Castle Rock and Lone Tree... and you are invited to celebrate their Grand Opening with them!
Check out these fun-filled events for the whole family to experience the FOSS difference.
Castle Rock
5650 Allen Way, Suite 112, Castle Rock
- Preview Lessons – Try out FOSS with a free 30-minute lesson. Tour the school, meet the teachers, and get a custom level recommendation for your swimmer.
Schedule your free Preview Lesson here. - Grand Opening Family Swim –
September 18th from 4:30-6:30 pm.
Join us for a Family Swim pool party! It’ll be an unforgettable event with swimming, smiles, and more! This is a free event and no RSVP is required. We require one adult in the water for every two children.
- Come celebrate the grand opening of our brand-new Foss Swim School in Castle Rock! We’re inviting families to tour our new school, meet our amazing team, and enjoy a FREE night of family fun, including:
Refreshing lemonade and treats
Balloon art to take home
Family Swim in our 90° pool
A scavenger hunt activity
PLUS—a chance to win a $500 FOSS gift card!
- Come celebrate the grand opening of our brand-new Foss Swim School in Castle Rock! We’re inviting families to tour our new school, meet our amazing team, and enjoy a FREE night of family fun, including:
Lone Tree
8455 Yosemite Street, Lone Tree
- Preview Lessons – Try out FOSS with a free 30-minute lesson. Tour the school, meet the teachers, and get a custom level recommendation for your swimmer.
Schedule your free Preview Lesson here.
About Foss Swim School
At Foss Swim School, we believe swimming is more than a sport; it's a lifelong, life-saving skill.
Since 1993, we've helped hundreds of thousands of swimmers grow in confidence, safety, and skill in and around water. Our proven Swim Path® curriculum is tailored to each student's age, experience, and ability, helping them make steady progress and reach important milestones, like floating, breath control, and mastering strokes.
We’re not just another swim school. Our entire facility is built specifically for swim lessons, from our warm, 91-degree pools to our thoughtfully designed viewing areas. Every detail supports learning, comfort, and fun.
Connect with Foss Swim School on Social Media!
