Oops! You said April Hunt! When you said "pre-register", I thought you were refering to May's Annual Picnic & Open Hunt! There is no pre-register for the club hunt at Lake Perris, in April. The park entrance fee is $8.00 per car! There is a carpool being forned at McDonald's at 7:30AM on Ramona Expressway, to help defray the cost of entrance! If you have 4 people in a vehicle, then it's only $2.00 a person to get in! But you can choose to enter alone, in your own vehicle, and pay the $8.00! If so, then you can arrive and leave when you want, without worring about carpooler's! It's up to you!