Actually the retaining wall at the back of the RV stall is only about 2' tall so the swimstep is over the top of it. I'd move the wall but the gas & power lines to the house are inside it. I had to place a piece of railroad tie on the ground so the prop guard would be the first thing to hit....... after I smacked one of the speedo pickups a few weeks after moving in.
So from the wall to the gate is just inches over 21'. The tongue sticks out of the gate a bit less than a foot, which leaves just barely enough room to step over the tongue between the bow & the gate.
-former '94 PS205 owner. Still ridin my Sky Ski.....