Thanks viz,

I've dived 50 times in the south of France and about 225 times the Red Sea
(Egypt, from the western part of Sina?, Sha'ab Ali - the Thistlegorm is the
most famous wreck overthere - till Marsa Alam in the South of Egypt)
The poisson of the cone-shells is known. The cone-shells are also inhabitant
of the Red Sea.

Near Marsa Alam there there is a reef, called Elphinstone, at a depth of 42
meters we saw about 10 of 12 sharks, a silvertip, blacktips, grey reef
sharks an an Oceanic whitetip.
The last one was about 3 meters large, He or she came to us, but at 8 meters
mister or misses Oceanic turned to the right, so we could see the size of
the animal. I was very impressed.

I will be carefull to avoid contact with the jelly-fish, here in the North
Sea thera are jellyfish who cause itching-spots if you touche the tentacles,
did you mean the "portugese warship" or other jellyfishes

It's good to read that the crew of the live-aboard boats have a good
attention for their divers. I presume they have briefings before diving.
I'm doing my trip at the Nimrod Explorer. This is the first time I visit
Australia, so I'm a newbee at the GBR

Henk
The Netherlands