Columbus - Friendship Cemetery - The ghost of a Confederate soldier can be seen at the back of the cemetery patrolling with his gun back and forth through the Civil War graves. Columbus - Mississippi University for Women - Calloway Hall - The ghost of Mary can be seen in the top floor window looking for her lost love.
Re: what causes a boat to porpus. A boat porpoises when the bow is being forced up into the air. It will will reach a certain attidude and then the bow will fall back down causing the up and and down motion. As to why your specific boat is doing this I can't say. Maybe try shifting a bit more weight toward the bow.
Rigid-hulled inflatable boat. For boats similar to RIBs but with rigid tubes, see Rigid buoyant boat. A rigid-hulled inflatable boat (RHIB) or rigid-inflatable boat (RIB) is a lightweight but high-performance and high-capacity boat constructed with a solid, shaped hull and flexible tubes at the gunwale. The design is stable and seaworthy.