Hi Roy.
I had a dirty job at Port Suez. It included getting wet in the stinking canal mud with under water breathing gear, looking, or more a acurately, feeling for explosives and mines about the jetty area. Trying to use a camera without being detected!
I nearly bought it a few times mostly by taking chances in not wearing protective gear against blood sucking fish and other nasties thereabouts. Yes, I got the pictures! Stan. L-B