When using these ABS pipe to move the boat, one simply lifts the bows and places one under the boat as far back as you can easily get it. The other is placed just under the bows, just aft of the bow tips. Then one goes to the back and pushes.

The boat will "roll" forward over sand or even a rocky shore. The beauty is that it really doesn't matter if the pipes roll over soft sand or stay put caught by some or many rocks.

If the pipes stay put, they are smooth and slick enough to allow you to easily slide the boat forward. When the aft pipe shows up at the boat's sterns, stop and move that one forward to just under and aft of the boat's bow tips.