That's too funny Jeff!,......I also went there several times as a kid with my parents, and once with my grandmother in the late 60's, and early 70's. My mom bought me Bill's book ~Cobras in His Garden~ that Bill autographed for me for my 14th birthday in 1974. I loved going to that place,....man, it was awesome when he broke out those huge King Cobras,....one was around 11 ft., and the other about 14 ft. in length!.
I also remember seeing that huge estuarine crocodile that years later killed that boy when he fell into the pit. I think it's name was "Stumpy", or something like that, because he had a huge portion of his tail missing that he bit off HIMSELF!. That thing was a giant monster probably near 4 ft. across!
Glad you had some good memories of the old Serpentarium as well.
~Doug

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"Better to be silent and thought a fool, than to open mouth and remove any doubt!"