Last Minute trip to Yosemite

Only a few times have we overnighted in freezing temps. Always successfully, and yes, always very cold! A work light/ drop light in the bays is advised, previous post said 100 watt but they are hard to find in California and a 60 watt bulb gives off a quite a bit of heat. Since we are in a drought the idea of letting water run through the lines is anything but PC. Disconnect your hose from the RV at night, letting the water drain from the hose. Keeps the hose from freezing up. Make sure you have enough propane, the electric RV heater usually defaults to propane when it gets too cold. Assuming you have full hookups take an electric heater along for the ride. Be prepared for chain requirements on the road.