Other than the entrance what are the addition charges? I purchase a yearly family pass for son and his family of 7. Is there an all inclusive pass available?

There are small charges for feeding or pet events, riding the train, etc. Currently the Blank Park Zoo doesn't offer any "all inclusive" membership pass. However, members do receive discounts for many of those feeding interactions, riding the train, etc. You can see all of the benefits listed on their website.

There is face painting, mining, animal feeding opportunities, and the carousel. All of these things have extra fees.