They have their place if you are diving in a dry suit for an extended time. If you are diving in a wet suit they would not be needed for obvious reasons. Scuba diving can dehydrate you from breathing the dry air in the scuba cylinders, so hydration is a must.
So that the scuba diver could go more streamline in the water.
Of course the answer is you need to ask a doctor. The big concern I would have is not so much the actual diving, but the weight you are going to have on your back wearing the scuba gear in and out of the water - which will be greater than 50 pounds.
Its not really scuba diving but its considered scuba diving. Also known as the hookah system. its when you have a gas powered motor pumping fresh air to the person or person's diving below, there can be up to four people diving off of one hookah system. the benefit of this system is that there is no decompression time and you can be underwater pretty much all day if someone fills the gas tank on the engine pumping air. but you are kinda tied down to something so i don't think its true scuba diving.
Buoyancy control is one of the most important skills you will have to master as a scuba diver. On the surface while entering the water you do not want to be too heavy that you will sink while on completing your dive you have to maintain proper buoyancy control so as not to surface prematurely
Scuba is a word based on an acronym so it is international, now the word diving will need to be translated.
This is a very popular location for diving. It can be more advanced diving, however, so you should already have some previous experience.
In reference to scuba diving, "SPG" stands for "Submersible Pressure Guage", which tells you how much air is in your tank so you can resurface before going too low on oxygen.
Scuba diving, as the equipment is so expensive, and it is expensive getting to a given location, from a boat, to dive. It's the 2nd most expensive fun (behind skydiving) you'll ever have.
Miami is known for its long shore line and crystal clear waters so Scuba Diving is very popular. THere are several classes available in Miami,on average the class will cost $200.
Looks like it is most of the time. One thing to keep in mind is that November is still hurricane season, so if a hurricane is nearby, SCUBA diving is impossible. It is going to be as safe as any other time going SCUBA diving. One particular month does not make SCUBA diving dangerous. As long as your guide knows what their doing, you will be fine.
For a while, but you'll slowly suffocate. And if you are diving in deep water, you can't swim to the surface in a hurry, so you may die either way.