Page 58 - Jane Renolds - Knots Your Complete Step by Step Guide to Knot, Knot Uses, and Knot Tying

Bowline on Bight

This knot could be used for footholds or emergency purchases while you’re
on the boat—simply by having it tied to a post. This also could work as a
bosun’s chair, or a comfortable free tail on the boat, helping you sail easily.

http://www.animatedknots.com/photos/bowlinebight/bowlinebightR11.jpg

Instructions:

1. Make a bight in the middle part of a rope.
2. Then, make a loop, and let the bight pass through the said loop.

3. Now, open the bight that you have made up, and let it circle around
the knot on both ends.
4. Tighten the rope so the knot would be complete.