Complex sentence: The event is an outdoor tribute to "summer camp slasher films", and will be held on an acutal campground with celebrities on site and the fans will have the option to camp out on site, bring an RV, or stay at a nearby hotel.
Split into simpler sentences: The event is an outdoor tribute to "summer camp slasher films", and will be held on an actual campground with celebrities on-site. Fans will have the option to camp out on-site, bring an RV, or stay at a nearby hotel.