Snuba in Key West

[cruisefanatic01]

I will be on EOS in July and all of my friends and I have booked a snuba excursion. This will be our first time and I have a few questions. I've read that some people have problems with the breathing equipment that you have to wear.

1. How does the equipment work?

2. Is the breathing pretty much the same as snorkeling? If not, what's the difference other than the supply of oxygen?

3. Does the water get in your mask like it does with the snorkel gear?

4. Do you see more doing snuba or snorkeling?

5. Is it scary and should I be nervous?

6. How long does it usually take to get comfortable since this is my first time doing this?