The hero of the book "Commodore Hornblower" uses camels to elevate two ships in order to get them closer to the enemy on shore. A camel is a hollow hull or ship that is heavily ballasted with water, sand or rocks which lowers the boat into the water. The camels are then tightly lashed to the sides of the main boat before the ballast is removed to raise all the boats as one unit. Once the ballast is removed the three boats are able to move into much shallower water than they normally could.
Maybe we should carry two dinghys on Wrinkles so the next time B and I are daydreaming and go aground we can camel her out. See how educational this site is!