diving

diving as well called scuba diving is the action to inmerse in water bodies like the oceans, lakes, rivers, etc. either with a professional, recreative or a invetigative purpuse.

the diving can be with or without breathing equipment, to the diving without equipment is  best known like apnea that is like a diving with lung.

the diving  have 4 levels   

open water diver that is the most basic level

advance diver that is the