sɪɡnˈɪfɪkənt ˌʌndɚwˈɔːɾɚɹ ɪɹˌɛɡjʊlˈæɹᵻɾiz, sˈʌtʃ ɐz ˌʌndɚwˈɔːɾɚ kˈænɪənz ænd sˈiː mˈaʊnts, kæn ˈɔːlsoʊ ɐfˈɛkt hˌaʊ ðə wˈeɪvz kˈʌm ˌɪntʊ ɐ sˈɜːf spˈɑːt.
Significant underwater irregularities, such as underwater canyons and sea mounts, can also affect how the waves come into a surf spot.