OK a mate of mine at work asked me a question about diving in Egypt, and as i have never dived there i could not answer very well

nothing new there then
He is going on a family Holiday to Sharm and up to 4 adults may want to do a days diving to see what its like
None of them have dived before, although i am looking at putting on a pool try-dive for them before they go, i think PADI centres run a Scuba Experience thingy that would cover this, so questions:-
1. Is it possible to do a 1 day dive in the sea, beginners package?
2. Whats it called?
3. What kind of price per person?
4. Would a discount for 4 doing it be a reasonable expectation?
5. Any recommended centres in Sharm for him to go see?
6. Any centres he needs to avoid?
Thanks in advance for the help
I'm going to send him a link to this thread as no doubt there will be lots of quality answers
