It's hard packed sand at the dirt ramp and you shouldn't have any issue with a 18' boat. The right side of the cut is the ramp and is not flat when backing up and takes a few tries sometimes to keep the boat level when backing. The left side (bottom portion of pic) has a large pipe you need to watch for with a high tide. As Troutsupport mentioned, leave nothing in the vehicle as it won't be there when you get back. We actually leave our vehicle unlocked after having so many door handles and windows broken over the last 20yrs. A close friend owns one of the PC cabins but we usually we make the run from Conn Brown due to theft.