This dive site is directly inshore, half the distance from Turtle Street. The reef rises to within 10 feet of the surface. At some point during its creation, seismic activity split the formation, leaving a valley 100 feet below. The wall is a vertical drop and its counterpart is 100 yards further inshore. This dive is concentrated along a 200-yard stretch of the seaward side of the wall. Its top has abundant variety of fish, colorful coral, arches and overhangs. Little pukas can be found through one side of the wall, which leads to the Turtle Street site. The valley itself is known as the Haleiwa Trench. About 20 yards off the wall is a large coral mount that seems to be part of the original structure still standing. The pinnacle is 100 feet across and rises to within 35 feet of the surface. A dozen turtles rest on the mount and are very comfortable around divers.