Lake Rudolph Campground & RV Resort features Vacation Rentals, Cabins, Cottages, Rental RVs, RV Sites & Tent Sites. Located in Santa Claus, Indiana. Lake Rudolph Campground & RV Resort is located in Santa Claus, Indiana. Voted one of the top ten favorite parks in North America and a two-time National RV Park of the Year, Lake Rudolph is the closest lodging and camping to Holiday World Theme Park & Splashin’ Safari Water Park. Lake Rudolph offers over 270 Vacation Rentals including Cabins, Cottages & Rental RVs. Over 200 Full-hookup RV Sites and Tent Sites are also available.