Thanks Pete and CJM, I appreciate the welcome. No, I've never tried scuba, I learned to swim late in life and it's one of my regrets that I didn't get into the underwater world sooner. Same with ski-ing. Could I get into scuba at 59? Doubtless I could, but it worries me that my relatively weak swimming would make me a handicap to companions. I was with a snorkelling party deposited off Sharm el Sheikh a couple of years ago in a strong current and half the party were swept away. I was OK, felt the pull and hung on to the hull, but it was hairy for others and it underlined how much respect we should all have for the elements.
At the moment I get so much fulfilment from bumbling about over inshore reefs and drop-offs, I'm not tempted to go the extra step, but in the future who knows. Doubtless this forum will add to the appeal.
Kind Regards