I tried the whole December holiday to get my 5-year-old daughter comfortable in the water without the use of a floating device. I even went ahead and signed her up for 9 swimming lessons with other instructors but had no luck. It was very incredible how the instructors at Oyougu had my daughter put her face in the water after spending 15 minutes with her during her first lesson and had her start swimming after the 3^rd lesson. I strongly recommend Oyougu to everyone.