Page 339 - Bob Holtzman "The Field Guide to Knots How to Identify.."
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38. Water Bowline
Probably the most secure bowline, the Water Bowline forms two Half
Hitches around the bight in the working end. It’s especially useful to
maintain security in wet, slippery line, yet it can still be untied easily.
Uses: general lifting and pulling, safety, docklines, especially in wet, slippery rope
Pros: extremely secure
Cons: uses more rope; trickier to tie than regular Bowline
Instructions
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