The NADA guides show a hull weight of 360 lbs.<br /><br />Get a couple friends and just lift that boat off the trailer, then set it down in your yard, or better yet, on some old tires.
The weight on NADA is a Boston Whaler 13'.<br /><br />Selles' boat is a whaler-like boat and might be a lot heavier.<br /><br />Selles, move the boat back about a foot or two on the trailer. Put the trailer tongue on the ground and place a support under the stern. Then lift the tongue and roll the trailer forward a few feet while keeping the boat in place. Put more support under the boat. Repeat this until the trailer is out from under the boat.<br /><br />To get her back on the trailer just reverse the process.<br /><br />Good luck.