Siang River Festival is a cultural extravaganza in Arunachal Pradesh, where one can find the cultural expression of the people of Arunachal Pradesh and the tourism scope in the region.

The District Administration of West Siang district, Aalo, in collaboration with the Department of Tourism, Government of Arunachal Pradesh organise Siang River Festival (Yomgo) at Aalo from January 14, 2008 to January 17, 2008.

The main purpose of Siang River Festival is to highlight the vast potentials of tourism in the state and to attract the Indian tourists and the international tourists as well as.

The people of Arunachal Pradesh who are almost fed-up with the day to day hustle and bustle of the metro life and want to seek solace in the lap of mother nature, for them the Siang River Festival is right answer. Arunachal Pradesh is the "Hidden Paradise" still unexplored by the tourists. Siang River Festival is the gateway to visit Arunachal Pradesh and the capital of Arunachal Pradesh.

Eco-tourism related to Siang River Festival
Eco-tourism in Arunachal Pradesh is equally stressed in Siang River Festival. The most recent trend in Arunachal Pradesh tourism, where stress has been laid on exploring the simple and uncomplicated life of the interior parts of the country. Many a times it has also been referred to as "rural tourism".

On one hand this eco-tourism in Siang River Festival helps people in forgetting their day to day tensions and on the other hand provides vast potentials of revenue generation to the state. It has been estimated by the United Nations agencies that by the year 2010, eco-tourism will be the most rewarding industry in the world. And Mother Nature has been kind enough towards Arunachal in providing natural beauty in plenty. Therefore, by organizing such festivals, an attempt has been made to promote eco-tourism in the state of Arunachal Pradesh.

Siang River Festival holds in the confluence of rivers Yomgo and Sipu at Aalo and extended to the islands lying on the other side of Yomgo which would ensure an exciting, enlightening and incredible adventure and enable one and all to savour the delight of wild beauty with the pristine Yomgo racing. Yomgo is one of the main tributaries of mighty Siang River. Thus this cultural extravaganza came to be known as Siang River Festival.