RedactedNarrative: On 8/7/2021 at approximately 1250 hours, V1, a personal watercraft (11 foot Sea-Doo), with two occupants was traveling southbound in the Intracoastal Waterway Channel (ICW) near Grant-Valkaria, Florida in Brevard County. The operator reported that a large 30-40 foot cabin cruiser vessel was traveling northbound and created a large wake. The operator stated he attempted to navigate though the wake but took a shallow angle which cause his PWC to intercept the reported 3-4 foot wake at a flat angle. The operator reported losing effective steering and getting caught in the trough of the wake. The vessel was traveling at approximately 30 mph when it allided with red day marker 40. The allision caused substantial damage to the PWC and broke the day marker from at its base. No injures were reported and the PWC was declared a total loss.