Knot typically require carabiners and the use of multiple appropriate knots. These knots include the bowline, double figure eight, munter hitch, munter mule, prusik, autoblock, and clove hitch. Thus any individual who goes into a mountainous environment should have basic knowledge of knots and knot systems to increase safety and the ability to undertake activities such as rappelling. Knots can be applied in combination to produce complex objects such as lanyards and netting. In ropework, the frayed end of a rope is held together by a type of knot called a whipping knot. Many types of textiles use knots to repair
Figure Eight Island is located just north of Wrightsville Beach and Wilmington. The island has an area of , most of which is marshland. Between the northernmost part of Figure Eight and Lea-Hutaff Island lies Rich Inlet, one of the few natural inlets in North Carolina. To the south, between the island and Wrightsville Beach, lies Mason Inlet. The former is a stable inlet, while the latter is migratory. Due to the island's proximity to the warm waters of the Gulf Stream, the ocean temperatures off of Figure Eight are comparable to destinations much further south and considerably warmer than the ocean off