Sorry I should clarify. we will spend one or two days at the park, looking at other things around that area.
Half a day at the actual park is enough to tire out the kids and they start to get bored. Especially if you go before high season and the lines are short. There is a good "kiddie" area up front that your kids will probably like. You don't need a wristband to escort them in the park so if you don't plan to go on any rides then don't buy one. The go cart track is fun.
Pirate mini-golf next to the park would be good for them.
The area with the dilly bars and taffy shop has some outdoor musical instruments my kids spent a lot of time playing.
Go on a cruise on the boat, can't remember what it's called.
Weekends there is usually free live outdoor music somewhere. You can enjoy some beverages while the kids run around.
With our kids we pretty much tried to get them as much beach time as possible.