GROUPS & PARTIES Group Events Are you looking for an affordable way to entertain your clients or say thank you to your employees? How about a relaxing setting for your family reunion that won’t break your bank? Would you like to have your church group event in a family atmosphere that is safe and fun without going over budget? A Mountain Creek Waterpark Group Outing is the answer. Click Here for More Information Birthday Parties Let Mountain Creek Waterpark host a special Birthday Splash and enjoy all the excitement of New Jersey’s largest Waterpark. Click Here for More Information