Driving Class C on the Beach

I have towed our 9000 lb TT on the beach in very soft sand with the Suburban many times...on Long Island it's not unusual to see C's on the beach....ones that have Quigley 4WD conversions that is. Air down to 15psi and you'll be fine...IF you have 4WD. If you have $10K to drop on a Quigley 4WD conversion, grab your tire gauge and go for it!