Port Sudan has a small fish market. This is a great place to get a preview of what you are going to see once you put on a mask and fins. Not that big in terms of size but it is near the base of a pier surrounded by beautiful blue/green water. You can buy a fish here, take it to a shop accross the way and have it cooked up for a fresh lunch.
there are some very small and low resorts located outside portsudan,, where you can spend a day from the morning till sunset on the beach,, exercise diving, having lunch, and there was a swimming pool under construture when i was there sinse last july, it has a beutiful view where you can play games with your company,, but never try to go there in monthes from june till august,, have a nice travel :)
There are some wonderful coral reefs off Port Sudan, but the only way to get to them is to hire a boat.
When we went , it was because it was a bit windy and the boat we found had had a cancellation because of the weather. Since it would not be a full day's rental we managed to bargain and get a reasonable rent. there were 6 of us and we were given a meal on the way out to the reefs. Not everyone ate as two of the group were feeling sea sick. Once you reach the reefs the water is calm and clear, and the coral is brilliant. In shallow water be careful not to put your feet on the bottom as there are some creatures that could give a painful sting [stone fish?].
I did not take the underwater pictures myself.
Being a port, Port Sudan is by the sea, so of course the big attraction here is the sea. People talk endlessly of how beautiful the beach is (you might have guessed that beautiful is the adjective of choice for most Sudanese), but I don't think they have a clue what a beach really is. The "beach" in this case is a concrete promenade next to the port...there are one or two cafes and a swimming pool, and some nice views of huge ships in the port, but you certainly cannot sunbathe or go for a dip. The posh hotels (like the Hilton, for instance) are located in this area, so it is the place to be seen, but really there isn't much here.
Not everyone is allowed in the dock but I had some work there took me along with him. People were working very hard under the hot sun.