I think it is worth bearing in mind that many disabled divers can safely enjoy open water dives as long as they are diving with properly trained buddies. Take Matt as an example he is totally reliant on his dive team, but no one would want to take away his opportunities to dive in the ocean.
The same goes for blind people, paralysed people, amputees, quadraplegics, etc, etc.
Thankfully, you have many organisations around the world, such as IAHD, HDA, etc, that specialise in teaching disabled people to dive, and also teaching able-bodied people how to be their buddies underwater. The IAHD Dive Partner programme is awesome imagine being wrapped up with duck tape so that you can barely move your left hand a few inches and the rest of you is immobile, and then being taken underwater in a pool with trained Dive Partners helping you with buoyancy, clearing your ears, etc. It freaks you out, but it means you have to trust your Dive Partners totally for assistance, just as a genuinely disabled diver would have to. It certainly opens your eyes...
I was lucky enough to be involved in the Around the World in 80 Ways (
www.aroundtheworldin80ways.com) event, which saw three disabled people attempting to use 80 different means of transport on a round-the-world trip to raise awareness of people with disabilities. I helped out on the section where they went to the Red Sea. Miles, the leader of the trio, was already an open water diver and he has been blind since his early 20s (he's now in his 50s), while the other two were an amputee and a legally blind woman who were doing their Open Water course.
Miles certainly proves that being blind doesn't mean you are incapable this is a brief rundown of what he has done:
His endurance achievements include; the 150-mile Sahara Ultra-Marathon, billed as "The Toughest Footrace on Earth", "The Siberian Ice Marathon", ("The Coldest Marathon on earth"), an 11-day ultra-marathon across sections of the Gobi Desert in China, crossing the entire Qatar Desert with 4 other men unsupported and non-stop without sleep, and man-hauling a sledge over 400 kilometres across Antarctica. His mountaineering achievements include climbing in the Himalayas, Scottish Grade 3 technical ice climbing, Mt. Kilimanjaro and Mt. Blanc, Africa's and Europe's highest mountains respectively.
Other past achievements include; Grade 5 Zambesi white water rafting, tandem cycling marathons, abseiling, hot-air ballooning, water skiing, micro lighting, scuba diving, and the 1998 London Marathon, para sailing and 40 sky-diving jumps.
A very inspirational individual.
Anyway, in the Red Sea, it was amazing to see the enjoyment he got out of diving. He used an audible Orca dive comp attached to his mask. He liked the feeling of weightlessness and all the noise, especially on the reef. When we surfaced, he wanted us all to tell him what we'd seen, and he got a lot out of that.
While I also push the 'look and don't touch' philosophy, we did find dead bits of coral lying in rubble patches and let him run his fingers over them to feel the shape/texture, etc. Then we told him what colours they were, etc, and he loved it.
Mark