OFFER #1: SPRING SPECIAL - 4 All-Day Fun Passes for $94! On Sale Now through May 7th. These are printable day passes to the Park Valid Any Day of the 2017 Operating Season. OFFER #2: An All-Day Fun Pass to enjoy DelGrosso’s Park is $21.95 in May 2017 (includes the water park when open). By purchasing your May All-Day Fun Pass online you will save $3.00 and pay only $18.95 per pass. Please Note: If this May All-Day Fun Pass is redeemed in June, July, or August - there will be an upcharge fee.