Blue Hole (Red Sea)
The Blue Hole is a diving location on the southeast Sinai, a few kilometres north of Dahab, Egypt on the coast of the Red Sea.
Woods Hole (passage)
Woods Hole is a strait in Massachusetts separating the Elizabeth Islands from the village of Woods Hole on the mainland of Cape Cod. It is one of four straits allowing maritime passage between Buzzards Bay and Vineyard Sound. The others are Canapitsit Channel, Robinson's Hole and Quick's Hole. Woods Hole is often referred to as Woods Hole Passage to distinguish it from the village of Woods Hole, which is itself named after the passage.