In Riau’s Kampar River, powerful tidal waves create one of Indonesia’s most unique natural spectacles.
While Riau is rarely associated with surfing, the Bono tidal bore on the Kampar River has quietly gained international attention for offering one of the world’s rare river surfing experiences. Occurring when ocean tides push upstream into the river, Bono creates long, rolling waves that can travel for kilometres along the Kampar River. The phenomenon transforms the usually calm river into a dramatic natural attraction that draws surfers, photographers, and curious travellers from around the world.
Unlike ocean waves that break toward the shore, the Bono tidal bore moves against the river current, creating continuous waves that surfers can ride for an unusually long distance. The waves are formed by strong tidal movements from the Malacca Strait, combined with the shape and depth of the Kampar River. Depending on tidal conditions, the phenomenon can produce waves reaching several metres high, accompanied by a powerful rushing sound that locals often compare to thunder.
Beyond its appeal to surfers, Bono also holds cultural significance for communities living along the river. Local stories and legends have long surrounded the phenomenon, adding a layer of mystery to the experience. Villages near the Kampar River continue to witness the changing rhythm of the river as Bono arrives, reflecting the close relationship between nature and daily life in the region.
Today, Bono represents a different side of tourism in Riau — one based not on large-scale attractions, but on rare natural experiences. For travellers looking beyond mainstream destinations, the Kampar River offers something unexpected: the chance to witness a powerful natural event where river, tide, and adventure come together in a way found in only a few places around the world.
Source: Ines Yolanda
