Whenever you are involved in any physically challenging activity, you get the feeling that your muscle may get even stronger.
Without a doubt, there is more complexity to how surfing helps build muscle.
However, one must surf regularly to really notice their effects.
Surfing counts as exercise since it raises your heart rate and makes your muscles work together to perform that activity.
Surfing helps you burn calories, builds your muscles, and improves your mental function. Considering these benefits, surfing can certainly help people get fit.
It is expected that those muscles will grow as they heal. But beyond that, surfing is a great way to exercise and burn excess calories.