I was told later it was actually 4 double-axle truckloads of sand. They also delivered 4 loads of gravel to our parking lot. I wasn't there when it was delivered, but someone who witnessed the parade of dump trucks said they really feared for our club's pavement and for the masts sticking out beyond the winterized boats!
Yes, I'll definitely be there for the Mayor's Cup Regatta. I hope the weather and water are warmer by then.