If you are interested in making an effort in increasing the knowledge about coral health CoralWatch has made a great do-it-yourself kit that you can use on your next snorkeling og diving trip to the Red Sea. Especially coral bleaching events are interesting to follow for scientists and resource managers.
semi bleaching
It will make you see the corals and the reef in a new way. And on top of it all, you assist in the global effort to monitor the health of the coral reefs.
You can also participate in observations of turtles. See how you can help to collect data on turtle movements.