Just about every hotel on the waterfront at Sharm has it's own coral reef
you get to the water on all of them by pontoon

some drop off into water a few metres deep some are up to 15 metres deep

the fish are amazing and not scared of humans just remember there is a large fine for walking on coral in Sharm and if you damage it €3000 is not uncommon

http://www.goredsea.com/en_gomaps+1-0-redseatravelguide.aspx will show you which hotels are beach front just click on the towns you are interested in

Why just stick to snorkelling get diving

Hi Mum9, without doubt the Conrad would really suit you ...best beach by far and all the snorkelling you could want without going in a boat...hardly any entertainment to speak of but just the most relaxing place ever.
Check out the hotel reviews so you can read what others say..the premium rooms are the best to book for as you get full sea view and lovely balcony plus terrace

thanks I'm doing the research

Nuweiba... no contest.

If you like excellent coral reefs, sandy beaches and peace and quiet then it has to be Nuweiba. The big advantage with Nuweiba is that is that you will not be jostling with other divers and snorkellers... Sharm is a dive and snorkelling factory. Also, the beaches in Nuweiba are generally speaking far superior to those at Sharm.