Re: 13 Ft Boston Whaler Bow Eye
You will have to cut an access hole inside the boat over the location where the eye bolt is attached. If the surface is flat you can use an inspection port to give the hole a finished look.
Plan on backing the eye bolt with a metal plate, 1/8" aluminum should work and can be shaped, to spread the stress, and use sealer to keep out the water.
Have fun.