Core-diving is a 'sport' exercised by LEP officers, generally Recon and Retrieval officers. It is prohibited by the LEP. The idea of the sport is to go into free-fall towards the centre of the Earth, and pull up at the last possible second, as to be launched to the surface by a magma flare. Retrieval Officer Bom Arbles died after he fell into the core during an attempt at Core-diving. He is the only known fatality contributed to core-diving. Holly Short holds the record for the closest to the centre of the Earth reached, being 500 metres. This earned her 2 weeks suspension.