The Banzai Pipeline on Oahu's North Shore has been enticing the world's best surfers for more than 50 years thanks to the heart-pounding barrels it offers. But these incredible bursts of ocean energy have a dark side too: Pipeline is one of the most dangerous breaks on the planet. Its massive walls of water are detonating over shallow coral reef packed with underwater caves that can trap surfers into nightmare scenarios, and that's just the beginning. Here's an inside look at the full range of hurdles that surfers face at Pipeline.