They stayed in Egypt for one year, and between 6 and 25 September 1762, von Haven and Carsten Niebuhr went on a trip to Sinai, where they were to inspect some inscriptions and visit Saint Catherine's Monastery at Mount Sinai, which was reputed to have a large library of rare manuscripts.
Selskabet opholder sig i Egypten i et år, og mellem den 6. september og 25. september 1762 foretager von Haven og Carsten Niebuhr rejsen til Sinai, hvor de skal bese nogle indskrifter og besøge Sankt Katharinas Klosteret ved Sinaibjerget, der skulle besidde et stort bibliotek af sjældne håndskrifter.