Teaching a toddler how to swim

I've been looking for a resource on how to teach toddlers how to swim. Apparently, You Tube has some great videos. Some examples of titles of videos include: If anyone has additional resources I'd love to hear about them.

• How to Teach Kids to Swim
• Beginner Swimming Lessons for Children
• Going Underwater with an Infant
• Kids' Swimming Lesson How to Teach Kids to Swim
• Beginner Swimming Lessons for Children : Teaching a Child the Back Float
• Kids' Swimming Lesson How to Teach Kids to Swim : Beginner Swimming Lessons for Children : Teaching a Child the Backstroke :
• Kids' Swimming Lesson How to Teach Kids to Swim : Beginner Swimming Lessons for Children : Returning Infants to the Wall
• Kids' Swimming Lesson How to Teach Kids to Swim : Beginner Swimming Lessons for Children : How to Hold an Infant in the Water