What's the ideal age to take a kid here??

I would say 4 - 10. Younger, they might not enjoy it much because, depending on what day/time you go, it could be crowded and you will have to wait in lines. Older, they might get bored.

Preschoolers will love it more than anyone else.

We started at 2. It was perfect :) Avoid the weekend though. It gets really really crowded !!

I will say 3yrs I took my son at 2 he was able to enjoy parts of the park but at 3 he was able to get on more rides and Play On The big slides more independently.

Any age is fine if your kids are nature lovers - started bringing mine since they started walking - and as long as it is not a crowded time for the little ones.

I think you can go with all your family.. And the age does not care.. It's a good places to enjoy with your kids.

Our 2.5 year old loved it

Baby to 7 after that they will be bored in 30 /45 min

When do they charge to enter?

3-11 for sure.

What is the cost of entry?

Although younger kids are recommended, older kids and even teenagers could have a fun time too; expecially if they are with younger family members.