Klaus is awesome instructor. His teaching method is simple and easy to follow.
it's too good to be true that learning swimming in five days is possible.
I felt it's impossible to learn in five days while I am signing up for his classes.
It did not even took 5 days to swim, glide on the water, holding the breathe under water,breast stroke (keeping head under the water surface and keeping head over the water surface), competition style swimming, back stroke, swimming in 15 feet deep ..etc.
I can't believe myself that I got the ability all in 3.5 days. His intensive course gave me the muscle memory kick in just 3 days. He taught the importance of Buoyancy.