We started DS swimming from 6months. In the class he was in, originally they mainly just sang songs which involved 'swishing' them through the water - like Wheels on the Bus, If your happy and you know it.. splash your hands, blow bubbles etc. They also did activities on a mat on the water, and progressed to sitting/standing on the edge of the pool and jumping/falling in.

DS is 2 now and has only had 1 term off due to whooping cough. He loves swimming and is very confident now. I am very glad I started taking him. Plus he always has a massive sleep after swimming