Do they have an yearly pass for kids? And are adults accompanying then gets free entry??

The yearly pass can be purchased at FuntasticPass.com - It will give an all-year admission to Makutu's Island - plus discounts at 1000's of other places all year long. (including Disney Land / Six Flags / shopping / Movie passes, Dining, Shopping and other Amusement parks). It offers savings in Entertainment, Recreation, Movies, Dining & Food, Shopping, Automotive, Golf, Health & Beauty, Home & Garden, Services & more. It comes with an iPhone and Android app.

Thanks everyone for quick response.

There is no yearly pass. Adult gets in with child admission but additional adults pay admission.

And no yearly pass.

One free adult per paid child admission. Additional adults have a charge.