Named because the reef is shaped like a rainbow, it starts at around 6m and drops down to 18m on the top of the reef.
A deeper gulley runs down the north side of the reef forming a nice wall along the side of the reef.
There is a telecommunications cable that runs over to Egypt running down this gulley.
This reef makes particulary good night dive where you will find Spanish Dancers, lots of lobsters and Moray Eels of all the rainbow colors. So if you want to dive the Rainbow Reef, do it at night.