If you’re coming from out of town, the nearest international airport is Portland International Airport. From there, Hornings Hideout is about an hour-long drive on US-26 going west. Rent a car or carpool if needed.
It’s recommended that you camp at Faerieworlds, because no faerie has ever rented a hotel room. Here is all the camping information you need, including wristbands, admission, what to bring, etc.