1 He can tie a bowline .

2 Double bowline is used by many climbers as their primary knot.

3 The bow protrudes from the bowline of large ships just below the waterline.

4 The bowline is not only strong and secure but is easy to break loose later, even when pulled tight under a load.

5 Learn to tie a fireman's bowline knot in this free firefighting video from a fire captain.

6 Bowline - A knot frequently used for tying the middle climber onto a glacier rope team, among other uses.

7 The bowline has worked loose on me during long routes, however the 'improved bowline ' is something I use when I am sport climbing and falling off is more frequent.

8 You had forgotten to tie in. I was a qualified mountain guide when this happened! Luckily I could tie a bowline one-handed. Other climbers have not been so fortunate.