The Telaga Waja River, flowing down the verdant slopes of Mount Agung in East Bali, is best known today for its rafting adventures but beneath its rushing waters lies a deep, often overlooked historical and cultural undercurrent. Historically, this river has served as both a geographical and spiritual artery for the people of Karangasem. It provides water for rice fields through a traditional irrigation system called subak and many Balinese believe it to be sacred.

The Ayung River is Bali’s longest waterway, stretching 68.5 km's from the lush northern highlands down to the southern coast at Sanur. It snakes its way through deep gorges, remote jungles, rice terraces and traditional villages, making it one of the island’s most scenic natural features. Despite its size, the Ayung maintains a gentle flow for much of its length, making it ideal for outdoor activities like rafting and river trekking.