Tourist development in the Sinai is mainly along the east coast where the coast meets the waters of the Gulf of Aqaba, though there can be many miles between resorts.
There is no tourism in Sinai. 
mnli hypothesis: There is no tourism in Sinai.  premise: Tourist development in the Sinai is mainly along the east coast where the coast meets the waters of the Gulf of Aqaba, though there can be many miles between resorts.