The Coolidge night dive is often heralded as the "best dive of my life" by divers and this is no exaggeration!
Swim down to cargo hold 2 and find a place to hold on. Turn off your lights and watch the spectacular show put on by the flashlight fish (Anomalops katoptran).
Once you are finished, lights on and head up onto the starboard side for a look around to see if you can find any sleepy turtles followed by a hunt around at the safety stop for all the night life including squid, eels, shrimp and lionfish.
Not a dive to miss.