658 Travel Guide

The Blue Hole is a world-famous natural marine sinkhole on the Red Sea shore north of Sharm el-Sheikh near Dahab. This deep, blue, dazzling and mysterious underwater cave is a world-renowned diving spot, drawing divers worldwide with its unique geology and vivid coral reefs—a unique highlight of the Red Sea. The Blue Hole is a natural vertical sinkhole about 100 m deep, close to shore. From the surface it appears as a round, deep-blue hole ringed by shallow colorful reefs—hence its name. With rich coral and marine life plus its unique deep-hole geology, it is a world diving destination. Importantly, deep diving here is dangerous and challenging (some accidents in history), so it suits only skilled technical divers with full preparation—never overreach. For most visitors, the best way to enjoy it is safe snorkeling on the shallow colorful reefs at its edge—floating over clear water, admiring corals and tropical fish while looking down into the deep blue abyss, unique and stunning. The trip also offers Dahab's rustic coast and the magnificent Sinai desert shore. Snorkeling safely at the edge and looking down into the mysterious Blue Hole is a unique, stunning experience (snorkel safely; deep dive for pros only).