About a week ago I was up on top of Mount Sinai to look at the sunrise over Egypt’s mountains. This is a common thing to do here in Sinai, and although you will not be alone on the top it’s still recommended to go. The sunrise is nice, but even more beautiful is the dark night sky with all the stars visible and a clear view of the Milky Way Galaxy.
To go up to Mount Sinai, take a 2 hour transport from Dahab to Saint Catherine’s Monastery (total price 6-8 euro for two ways) and then walk up the mountain for 1-3 hours depending on how used you are to trekking. If you are lazy it is even possible to ride a camel up half the way. The monastery is around 1500 meter over sea level and the mountain top from where people use to view the sunrise is on 2300 meter. Bring some warm clothes and a lot of water, but there are also cafés on the way up where you even have possibilities to rent a warm blanket from the Bedouins that live in the area.
Remember, if you are scuba diving you need to wait at least 12 hours from your last dive before going up to the mountain, to protect yourself against decompression sickness!