Also, for those who go by Pisa, there is an arm of the sea, where men go to other havens in those parts, and then they pass by the isle of Greaf, that is at Genoa; and so they arrive in Greece at the port of the city of Myrok, or at the port of Valone, or at the city of Duras (where there is a duke), or at other ports in those parts; and so men go to Constantinople. And afterwards they go by water to the isle of Crete, and to the isle of Rhodes, and so to Cyprus, and so to Athens, and from thence to Constantinople. To hold the more direct way by sea, it is full one thousand eight hundred and eighty Lombard miles. And after, from Cyprus they go by sea, and leave Jerusalem and that country on the left, and proceed to Egypt, and arrive at the city of Damiette, at the entrance of Egypt, whence they go to Alexandria, which is also upon the sea. In that city was St. Catherine beheaded; and there St. Mark the Evangelist was martyred and buried; but the emperor Leo caused his bones to be carried to Venice. There is still at Alexandria a fair church, all white, without pictures; and so are all the other churches which belonged to the Christians all white within, for the Pagans and the Saracens whitewashed them, to destroy the images of saints that were painted on the walls. The city of Alexandria is full thirty furlongs in length, but it is but ten broad; and it is a noble and fair city. Here the river Nile enters the sea; in which river are found many precious stones, and much also of lignum aloes, a kind of wood that comes out of terrestrial Paradise, and is good for many different medicines; and it is very precious. From Alexandria we go to Babylon, where the sultan dwells, which is situated also on the river Nile; and this is the shortest way to go direct to Babylon. From Babylon to Mount Sinai, where St. Catherine lieth, you must pass by the desert of Arabia, by which Moses led the people of Israel; and then you pass the well which Moses made with his hand in the desert, when the people murmured because they found nothing to drink. And then you pass the well of Marah, of which the water was first bitter, but the children of Israel put therein a tree, and anon the water was sweet and good to drink. And then you go by the desert to the vale of Elim, in which vale are twelve wells; and there are seventy-two palm-trees that bear the dates which Moses found with the children of Israel. And from that valley is but a good day's journey to Mount Sinai.