There are two basic tie-in knots climbers should be familiar with: The figure-eight follow-through, or “trace eight,” and the double bowline with a back-up. Heather Weidner, pro climber, explains the ...

If you’re going trad climbing or sport climbing, you might be able to hang back and let others set up anchors and lead climb on multi-pitch routes, but there’s one knot you absolutely have to know how ...