Clements and Danger Reef is comprised of multiple small elongated reefs, which are located north-northwest of Sucia Island. This wilderness reef system is completely submerged and has a size of 4.75 acres when exposed. Marked with a lighted nav aid beacon and a nav buoy, it is recommended to give the area a wide berth, and have proper charts on hand. This is another of the reefs on the Friends of the San Juans "16 Most Frequently Hit Rocks or Reefs in the San Juans" list (click on map below to pinch/zoom). Image courtesy All Aboard Sailing.