Bowline draws tighter as tension is placed on the standing part of the rope. The "Birmingham bowline" has two loops; the working part is passed twice around the standing part (the "rabbit" makes two trips out of the hole and around the tree). Other two-loop bowline knots include the Spanish bowline and the bowline on the bight; these can be tied in the middle of a rope without access to the ends. A triple bowline is used to make three loops. A Cossack knot is a bowline where the running end goes around the loop-start rather than the main part and
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