Dive - Dive, repeat cycle
Light house may seem just a regular home reef, where the DSDs are done, and where the Open Water guys start their experience.
Just make sure you don't forget about the "Other hand" :) there is always an "other hand" on which you will find a great coral reef, with lots of fish and cool small animals to see. Don't miss the night dive there!
all this just round the corner, in the downtown of Dahab!