Stylistically speaking, High C's is a contemporary take on the traditional "swashbuckling" genre of orchestral music, characterized by bombastic melodies in the brass section, fast and intricate accompaniment patterns in the strings, and a 'swaying' rhythmic feel (typically in 6/8 or 12/8 time). This kind of music was commonly featured in the soundtracks of classic movies about pirates and/or naval warfare in the age of sail. The score to 'Pirates of the Caribbean' is another good recent example of this style.
It's also worth noting that in sailors' jargon, "high seas" can also mean 'large waves'. The textures and pacing of High C's could be interpreted as a musical depiction of a ship getting tossed around by big waves (or 'high seas') in an intense storm.
TL;DR: High C's emulates a genre of film score that's often associated with the high seas.