Treading water involves keeping the head above water and maintaining a position of balance in the water by kicking and paddling with the arms. Treading water requires coordination, balance, and core strength, as well as the ability to continuously move your legs and arms to stay afloat.
Treading water can be a challenging skill to learn, especially if you are new to swimming. After students have mastered basic strokes, and become more comfortable and confident in the water, then the instructor can move on to offer this advanced or optional skill for those who are interested and ready for it. The key to mester treading water is to practice regularly and work on building your strength, endurance, and techniques.
If you are in particular interested in treading water, please discuss your goals and needs with the instructor to ensure you are getting the most out of your swimming lessons, and become proficient at treading water.