Members can get the BoatUS group number from the Members' Area page...
I'd rather that we don't post the WOA BoatUS number in the public forum - so I've deleted the full number below members can get it at the page mentioned above. Seems best if we just use if for WOA members as BoatUS intends.
The unlimited Salt Water towing suggestion below seems very wise - towing can get expensive very fast.