Went camping Sunday to yesterday at Green Meadows camping area near Mt Washington in NH. Twenty minutes into the trip my oil pressure went to zero and the low oil pressure alarm was sounding. Pulled over and everything seemed okay, the engine is hot but it is 95 degrees outside. The oil gauge is now pegged at 80 psi but goes to zero when I rev the engine. Make an executive decision that the oil sender must be bad and to continue the trip. The oil gauge stressed me out the whole trip even though I know it must just be a bad sender as the engine ran cool all trip. The campground which is usually jamming during the 4th of July was practically empty. It must of been because of the heat wave. We had the swimming pool all to ourselves several afternoons. No traffic no crowds except for the fireworks in North Conway. The guy at the go cart place said it was the slowest 4th that he has ever seen. Had a bear scratch the side of the TV climbing up to smell my clam shell cargo carrier, looks like a cooler, on the roof. It was parked right next to the camper.