Daman and Diu are the smallest union territories of India. The district of Daman is situated on the west coast of India between the parallels 20o27`58" and 20o22`00" of latitude north and between the meridians 72o49`42" and 72o54`43" of longitude east of Greenwich. The total are of the district is 72sq.km. Damanganga River divides Daman into two parts. Three rivers pass through the land. They are the Bhagwan River, the Kalem River and the Damanganga River lying in between. The district is bounded on the North by Bhagwan River, east by Valsad district of Gujarat state, south by Kalem River and on the west by the Arabian Sea. Its altitude is 12 m above sea level. The geographical area of Daman is 72 sq km. Daman is gifted with a pleasant climate all throughout the year. In summer Daman has a cool breeze coming from The Arabian Sea. The maximum temperature is 39 degree centigrade and the minimum temperature is11 degree centigrade. The average rainfall here is 1687 mm.

Diu is a tiny island in the Arabian Sea located near the port of Veraval, separated at the south by a narrow channel. On the South there is a sandstone cliff washed by the sea. The island is connected to the mainland by a narrow channel on the north. The district of Diu is situated between the parallels 20o44`34" and 20o42`00" of the latitude north and between the meridian 71o00`24" and 70o52`26" of longitude east of Greenwich. Two bridges, one near Tad village and the other near Ghoghla village connect Diu. The total area of the district is 40 sq km. The Head Quarter town is Daman. Chassi is the main river of the district, which has the length of about 13 km.