Chaliyar River
Chaliyar river, also popular as Beypore River as it nears the sea, is the fourth longest river in Kerala having a length of 169km. The river which originates from the Elambalari Hills in the Western Ghats, Tamil Nadu flows through Wayanad, Malappuram and Kozhikode districts. The southern part of an estuary (‘azhi’ in Malayalam) where the river meets Arabian Sea is known as ‘Chaliyam’. During the late 19th and early 20th century, Chaliyar river was the main waterway to carry timber from the forest areas in Nilambur to the mills in Kallayi, one of the major center of timber business in the world. Chalipuzha, Punnapuzha, Pandiyar, Karimpuzha, Vadapurampuzha, Iringipuzha and Iruthilpuzha are the major tributaries of the Chaliyar river. 

Kallayi River
The 40kms long Kallai river, originates from the Cherikkulathur in the Western Ghats at an altitude of 45 m and is linked to the Chaliyar River by a man-made canal on the south side of the Kallai village. This small village on the banks of the Kallayi river is a major center of Kerala's timber industry. Though the past glamour has been lost, the yard is said to be the second largest in the world. A steel bridge built by the British is still intact here.

Kadalundi River
Kadalundi river that serves as a borderline between the Kozhikode and Malappuram districts is 130kms in length with a drainage area of 1,099 sq.kms. Also known by the names Karimpuzha and Oravanpurampuzha, the river is formed by the union of its two main tributaries, Olipuzha (originates from Cherakkombanmala) and Veliyar (originates from Erattakombanmala). Known for the wide variety of fish, mussels and crabs, Kadalundipuzha merges into the Arabian Sea at Kadalundi estuary. The beautiful red-rocks on the south side of the river mouth is an attracting site at sun rise and sun set, with the beautiful sprays of waves falling on the rocks. The Kadalundi Bird Sanctuary is located situated nearby . One of the oldest railway link, Kadalundi Bridge across the river, built by British over 140 years had collapsed in the year 2001 after a train accident.

Mahe River
Also known as Mayyazhipuzha, the 54kms long Mahi River has its origin from the forests situated on the western slopes of the Wayanad Hills. Covering an area of 394 sq kms, this beautiful river cascades through the villages of Naripetta, Vanimel, Iyyancode, Iringanoor, Tripangathur, Peringalam, Edachery, Kacheri, Eramala, Kariyad, Olavilam, Kunnumakkara, Azhiyoor and Mahe. The river is the northern boundary of Mahe town, the former French settlement, located at a distance of 6 kms to the south of Thalassery, Kannur district. 

Murad (Kuttiady) River
The 74 km long Murad River also known as kuttiadypuzha comprise a total area of 583 sq.kms along with its tributaries. Onipuzha, Thottilpalam puzha, Vamathil puzha and the Mandapalli puzha are the main tributaries of the river. Murad river originates from the Narikkotta ranges on the Western slops of Wayanad hills, a part of Western Ghat and flows through Vadakara, Koyilandi and Kozhikode taluks. It merges into the Arabian Sea at the historical Kottakal Fort which is about 7 km south of Vadakara.

Korapuzha
Elathur River alias Korapuzha, the boundary between North Malabar and South Malabar is formed by the joining of the two streams Punnurpuzha and Agalapuzha. The Punnurpuzha, which forms a part of the important West Coast Inland Navigation System, originates from Arikkanakunnu and the Agalapuzha serves as a backwater. The total length of the Korapuzha river is 40 kms. with a drainage area of 624 sq.kms. It merges into the Arabian Sea at Elathur and in their lower reaches, the river and its main tributaries become tidal. Korapuzha is the venue of the Korapuzha Jalotsavam, the water sports festival held during the month of August.