To register for this level, your child should be at least 3 years old by the date of the first class. This is a combined level class for kids in either Sea Lion or Narwhal level. Narwhal is for our strongest preschool swimmers. Front crawl and back crawl are introduced as well as interval fitness training. Preschoolers will also learn how to tread water and perform vertical whip kick with a buoyant aid. Once complete, preschoolers can register into Swimmer 2.