The tethering system consists of 6 lightweight anchors which the crew drops over the side equally spaced around the gunwale of the boat. These anchors are suspended at a depth of 60 feet, and their ropes form the foundation of the system. Each diver is issued a High Intensity dive light, and then the diver is clipped to a 10 foot lanyard (leader) and is escorted to the dive platform for a giant-stride entry. The Divemaster or deck hand will have a hold of the other end of the lanyard and follow the diver to their assigned anchor line and clip it on. The lanyard slides up and down the anchor line with the diver to a depth of 40 feet (where a stop is attached) allowing the diver to move up and down in the water column and in a twenty foot diameter circle. The diver is connected to the boat at ALL TIMES. Although this may seem restrictive, it has been our repeated experience that establishing neutral buoyancy and hovering in the water will bring as much, if not more opportunities to experience the marine life in this unique environment.