The Biggest Waves In, Oh, Forever, Maybe, Are Pounding Portugal’s CoastHurricane Epsilon has been churning the North Atlantic into a maelstrom of very, very angry seas for days now. As the raw energy of the swell spaces itself out and organizes itself into a proper swell train, it has steamed straight into Europe’s Atlantic coast. Ireland’s Mullaghmore is also cracking right now, with what are probably the best and meanest waves breaking anywhere in the world. Today saw surfers tackle some of the biggest waves humans have ever ridden. Waves lurch and grow above a shifting trough that doesn’t have a stable floor to measure from.