I had the opportunity to arrange a 3-day visit to the holy site, which included a hike to Mt. St. Catherine - the highest point in Egypt, through the guidance of Ahmed, a Jebeliya Bedouin. He said his tribe has lived for centuries in the mountains of South Sinai. 

Perhaps for most travelers, St. Catherine Area means St. Catherine Monastery, and its impressive museum, church and the Burning Bush. But by venturing out in the valleys and canyon (property is 60,000+ hectares), one discovers other interesting chapels, ruins and archaeological sites most likely related to stories in the Book of Exodus. 

It took several hours and a great deal of sore muscles to reach the country's summit, the Chapel of St. Catherine (photo uploaded). On the way, Ahmed and I hiked through Wadi El-Arbaein (Valley of the Forty, in honor of the Forty Martyrs), numerous rock shelters, olive gardens and ancient wells. 

Two tentative sites, Raitho Monastery and Wadi Feiran, for their own unique heritage values can perhaps be nominated as extension to (or enhancement of) the St. Catherine heritage site.