The purpose of this bill is to regulate commercial shark cage diving operations. The penultimate shark, the great white, inhabits our waters around New Zealand, but, partly due to the prevalence of fur seal breeding colonies, Stewart Island and the Chathams are two places where you're virtually guaranteed an encounter. Shark cage diving is for the intrepid. From the safety of a cage that is lowered into the water, cage diving involves fee-paying divers viewing sharks in their natural habitat. The sharks are drawn to the area, mainly using berley, which is ground so fine that it provides scent but no food. 