n the Middle Ages it is difficult to move and there are few travellers, because they have to face the hardships of a journey. Roads are dusty in summer, and muddy in winter. Moreover in the plain you need a day long to cover 20-24 miles on foot. Peple riding a horse or with a cart can cover 40 miles in a day. Another problem is the danger of meeting thieves and raiders, ready to take everything away from the travellers. So people travel only in case of need.
Merchants are the only regular travellers: they supply with spices and goods, and they take them to far-off places. Merchants travel escorted by mercenary, who travel riding horses or on big carts. They also travel by ships, in order to cover longer distances and to ship a bigger cargo.
The problems they have to face during a journey by sea are different but certainly big ones: pirates and storms are the most serious.
Other travels are made by pilgrims, going to important sanctuaries, far-off churches, places where saints were born or where they died.