Tillaberi, which lies along the Niger River between Niamey and Ayorou, has been listed as having the highest average annual temperature in the world. Walking among the closely set mud-brick buildings during the hot season can be very trying. The Sunday market is very large—so much so, in fact, that there is a "premarket" market on Saturday, although some contend that this is a concession to the many people who want to head to Ayorou's market on Sunday. Although there are several bars along the paved road, the most enjoyable place to relax and survey the bustling scene along the river is at the government rest house (campement) in the northern part of town. It is a well-kept hotel and bar/restaurant that has clean, air-conditioned rooms at very low prices. 55 mi/90 km northwest of Niamey.