Garret McNamara 's wave believed to be 100 feet high . Thanks to one of the only deep water canyons in the world that connects to shore , Praia do Norte -- the north beach of Nazaré -- sees abnormally large waves . Small Portuguese fishing village has some of the world 's most dangerous surf . Comment:
Garret McNamara 's wave believed to be 100 feet high . Small Portuguese fishing village has some of the world 's most dangerous surf . Comment: