But where are you going to dock the dive boats if you can't develop port facilites?
Good point. This dive site has ceased operation: http://www.eritreadivers.com/start/index.html
"Thank you and goodbye, dear friends!
After more than 3 years of hard tries to establish our diving and soft tourism activities in Eritrea we say farewell for now until the sun comes up again.
We say this with sadness.
We have to apologize that the situation in the country gives us no other choice for now."
Most Red Sea dive operations (not all, but most) are live-aboard vessels.