I know quite a few geocachers that are divers and wondered if they knew about this site yet - DiveCaching website
. Opencaching has a whole category set up for ding caches. With a feature like that, it looks like divers may have more opportunities to hunt caches underwater in the future.
Anna Mary and I have never learned to scuba, but we thoroughly enjoyed snorkeling a few times. We saw amazing and abundant ocean life while snorkeling at Captain Cook Underwater National Park in Hawaii and we also snorkeled with sharks in The Bahamas. Thrilling! The only bad thing about our shark adventure was that I was the last one back in the boat and that was sure a spooky feeling, being the only one left in the water with sharks down there feeding.