Sibu BASE jump is an annual event that is held in September every year since 2009, which lasts for 3 days. Night jumps are also performed if the weather is fair. The BASE jumping usually takes place from the top of Wisma Sanyan which is 126 m high and is the tallest building in Sarawak. The number of jumpers has increased from 11 jumpers in 2009 to 45 jumpers in 2014. In 2013, world's first tandem BASE jumping from a building (Wisma Sanyan in Sibu) was done by Sean Chuma (world-renowned BASE jumper), carrying Rudy Anoi (chief executive of Sarawak Tourism Board, Sibu branch) with him.