Someone else chime in here please because this dudes ignorance is going to cause a lot of headache or worse.
If a vehicle is rated for 3000 pounds, that's max...no exception. It's also likely that that figure was determined with a small load in the vehicle already, which you likely won't have if you're going to the lake. So factor in hundreds of pounds of gear in the van with several hundred more in the boat with coolers/fuel. You're now well over your limit, but you for some reason think your corpse carrier is a hauling vehicle....no, **** no.
If you already KNOW you'll encounter 6 different types of trailers you'll be hauling for gods sake man get a proper vehicle, that is a lot of variety which most people don't have and even they justify a truck for what they want to tow. The honda may be adaquate for the once a year tent trailer trip, but you're trying to avoid the fact that your lifestyle necessitates a gas guzzling truck or suv. Those loads repeatedly being behind your van is going to tear the ever loving shit out of your drivetrain, or potentially put your and your family in a situation where you wish you didn't have several thousand pounds pushing you into harms way.