I did the whale shark dive at the Georgia Aquarium two summers ago. It is a pretty jaw-dropping experience, even for experienced divers due to the massive biodiversity. The biggest of the sharks is only twenty six feet long, so some measure smaller than the one in the picture above, but still a huge animal and incredible to see in the water. The hammerhead that swims with you throughout the dive is the real knockout to me, though, and the mantas are no slouches when they go into their feeding loops.
Trying to update my sig ...
