I've been that close to gators in Georgia, but I'll never do it again after watching a video of a gator running down a hill to the water. It didn't slither or such, it ran like a cat, fast, nimble and on its feet only. No legs touching the ground. No belly touching the ground. It ran about 25 mph like a cat and when it got to the water it slumped back onto its belly and resumed the lazy look.
That cured me of getting near a gator again. That and the video from Thailand of the animal trainer losing his arm to a gator. He put it in the gator's mouth (in front of an audience) and the gator clamped shut and did about ten rolls in a second or two. Took the man's arm off as easily as I could pull the stem off an apple.
Nice pics, though.