Scuba breathing systems are really complex. There can be either closed or semi-closed circuit rebreathers. This allows air to be recylced
I would enjoy scuba dìvìng!
Would you be interested in recreational diving? Its primarily for fun!
Absolutely! I lìve by a beach.
Awesome! So you would have plenty of people around to teach you how to do it safely! There are alot of skills that come from classes and are kind of counter intuitive.
Yes I do. There was a group of dìvers who just recently found a sunken shìp off the beach
Sunken treasure is awesome! It kind of reminds me of 1929 when a landslide caused several beach homes to fall into the water. 
Wow! I have never heard of ìt. Where dìd that happen?