Anyone have information on what would make the floorboard in the trunk of my 2000 Odyssey wet?

 

Possible water leak from rain or washing the vehicle. Check to see when it gets wet. Rear Door seal may be leaking.

 

Its possible it from the rear lights or from the rear trunk mouldings ? yes also i agree to check on the door seals...

Have ure car been to an accident before? this ever happen to some of the cars i came across to.