How do you get into the park and how much are the wristbands

It depends on what you want to do, water park and/or rides. Best to check the website for prices, but you can just get points on a Wally card if you just want to ride a few rides

Around 50 for a combo pass. That's both parks

There are 2 entrances to the park. At each entrance are ticket booths where you get your wristband. You can also walk through the park without buying a wristband and they have wally card stations where you can buy points to go on rides.

Look on the website for wrist band costs. You just walk to the front gates and purchase passes. You can purchase online, then bring them to the front gates.