Sharm-el-Sheikh is situated in Southern Sinai in the National Park region of Ras Mohamed. It is spread out along the coast line in the areas of Nabq, Airport to Nama Bay, Nama Bay itself, Nama Bay to Ras um Sidd, Sharm town. 

The Nabq Bay area of Sharm el Sheikh is the most Northerly area and the newest (most of it is still being built).
The area is developing rapidly with many hotels and appartments being built. A lot of the property to buy deals are in this area

The main tourist area is Nama Bay which is approximately a 1km long sandy beach, which is now filled with hotels, restaurants, shops and bars.

Dress code: In Sharm the normal clothing is shorts and Tee shirts or any other style of loose cotton. With the number of shops here that sell Tee shirts you don't need to bring much luggage.
For the girls you must remember that you are in a Muslim country where the women are usually covered up. The less you wear the more looks or comments you will get.