Contacts are okay as long as they are the soft kind. If you wear hard lenses it is not advisable to wear them at pressure, or while scuba diving.
I am reporting in, my instructor wears contacts for tech dives to 250' plus, and I have worn contacts for 52 dives to depths of 125' without issue. Many modern soft contacts are 'gas permeable' meaning gas can escape through them. I decided to play it safe prior to getting contacts for diving and went to a full blown ophthalmologist (not just some fool at a glasses store). He said that it wouldn't be an issue at all.
I am a scuba instructor for more than 25 years with thousands of dives as well as being a tech diver that has made multiple 400 foot dives. I too wear contacts and have never had a problem. I wear "hard" lenses referred to as rigid gas permeable lenses. Gas exchange does occur and there are no known problems. There is also no pressure differential where you can't equalize a contact lens ... otherwise they would be popping off during an ascent - which simply does not occur. I have only had a lens come out twice during my years of diving and my mask has always trapped the lens for me.
You can scuba dive in several places. You can dive in the Caribbean, such as Jamaica, and the other islands. However, you have to be 16 to dive there at all. You can dive in several other places, but for more information you could ask a travel agent. You can also Scuba dive at Manly beach(shelly Beach)
No, you don't need a certain body type to scuba dive. Because you use flippers to SCUBA dive, you can be a very lousy swimmer and learn to SCUBA dive. You may look stupid with a very tight wet suit during scuba diving, but you can dive. When I got certified, I learned that you have a very slightly higher chance of the Bends during scuba diving, but this is a small percentage. The pros of scuba diving outweigh the cons.
There are no legal requirements to scuba dive. In other words, anyone can scuba dive without breaking a law (assuming you are not doing an illegal underwater activity such as illegal fishing). However, if you are not certified, you will not be able to rent or buy equipment or get someone to fill your scuba cylinder.
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