This dive operator is one of the best I have dove with, they make a diagram of every dive site and give a detailed briefing. Here is a quick shot of the briefing and some pics of the dive.
Here are two write ups of the dive site that I plagiarized from this website
http://www.dunbankin.com/provo2003/
Thunderdome - "Thunderdome . Just 100m inshore from Chimney (we did both sites in one dive), Thunderdome is the site of the underwater tasks that the contestants had to carry out in a 1980's French "Survivor"-style game show. Like the Thunderdome in the Mad Max movie, it was a hemispherical iron grillwork dome, sitting on a sand floor at 15m, and with a single narrow entrance/exit at the top, about 8m deep. Contestants had to free-dive down and search for "pearls" hidden in the dome, begging lungfuls of air from scantily-clad "mermaids" with scuba tanks. Back on shore at the "Tiki huts" where they lived, they could exchange the pearls for food and water. Unfortunately the show was canned after two contestants suffered lung damage - they hadn't been trained to breathe out when surfacing from the dome. We saw a friendly nurse shark swimming around the Thunderdome, keeping an eye on us."
The Chimney - Not a real chimney but a cut out in the wall that looks like a chimney, I guess. Here is the quote, "Chimney. Flat reef-top at about 12m, leading to abrupt vertical wall going down to 5,000ft. Partially enclosed vertical chimney to swim down through from the reef top, emerging at about 27m. Sensational corals and sponges on the wall - tubes, barrels, elephant ear, fans etc. Sharks passing by off the wall below us, turtles on the reef top, lobsters waving their tentacles at us from crevices in the wall, moray eels on the reeftop swimming between and lurking under coral heads. Lots of good reef fish."
