World's Largest Swimming Lesson

Join us for a free swimming lesson on Thursday, June 25! World's Largest Swimming Lesson 2026

Take part in this global initiative where participants around the world will take the same swimming lesson in one day!

We are offering World's Largest Swimming Lessons for free at Acadia, Bob Bahan, Sir Winston Churchill and Thornhill Aquatic Centres. 

Benefits of the World's Largest Swimming Lesson

On June 25, 2026, pools and swimming schools around the world will deliver swimming lessons focused on building safe skills in and around water.

  • Learn vital water safety tips and swimming skills

  • Know how to survive an unexpected fall into deep water

  • Build confidence around the water

  • Learn how to prevent drowning

World's Largest Swimming Lessons

Registration for all World's Largest Swimming Lessons is ongoing. You can register:

Take part in one of our lessons

Join on Thursday, June 25 for free, beginner swimming lessons. They will be offered at indoor pools around Calgary. For ages 3+ years.

Register for a swimming lesson

Come prepared

Kids and teens must wear swim wear and bring a towel. Please ensure long hair is tied back out of their face and jewelry is left at home. 

Swim goggles are optional but nose covering googles (snorkel masks) are not permitted. 

All other required equipment and lifejackets are provided. A lifeguard will also be on duty on the pool deck.

Note: If a your kid or teen requires a support staff/aide, they will also require this support in the water.

Non-Traditional Bathing Wear Policy

The City of Calgary Recreation is committed to providing an aquatic environment where individuals from all ethnic and religious backgrounds are comfortable participating in activities in and around the water.  We want all customers to feel safe and welcome at our facilities, and have therefore adopted a non-traditional bathing wear policy as outlined below.

In addition to conventional swim wear, participants may wear:

Long-sleeved pants and shirts, tee-shirts and shorts with undergarments or a swim suit worn underneath.   

Traditional ethnic clothing (e.g. saris and hijabs) with a swim suit or undergarments worn underneath.  For safety reasons, patrons wearing traditional garments such as saris are asked to remain in the shallow end of the pool and to refrain from using the dive tank. 

In order to ensure that our aquatic environments are safe and free from any external contaminants, all participants are required to:

Wear clothing that is different from the clothing worn to the facility

Take a complete and cleansing shower (while clothed in the swim attire that will be worn in the water) before entering the pool 

Through this policy, Recreation affirms its commitment to recognizing and valuing the diversity of our customers.   

Stay safe around water

Drowning can happen fast and quietly

It may take only 20–60 seconds and it doesn’t always look like an emergency.

Stay confident around water

Swim lessons help children gain skills, comfort and safer habits around water.

Adult supervision

Stay within arm’s reach, put phones away, add barriers (fences/gates) around water and know CPR.

Use life jackets the right way

For weak or non-swimmers near open water, use an approved, properly fitted life jacket—still with close supervision.

Drowning is preventable

World's Largest Swimming Lesson is a reminder to practice water safety and build skills that last a lifetime.

Want to learn more about all the great work done to help kids stay safe around the water?