In Fijian mythology, Dakuwaqa is a shark-god. He was greatly respected by fishermen because he protected them from any danger at sea and sometimes protected them from evil denizens of the sea.
He was once going inland to conquer Kadavu Island through the river when another god challenged him in the form of an octopus. After a great battle, the octopus won (mainly due to his 8 arms which enabled him to hold off the massive attack of Dakuwaqa) forcing Dakuwaqa to promise to never attack Kadavu again. That is how Dakuwaqa became the god and protector of Kadavu. Dakuwaqa can also change shape into anything, but his real form is that of a muscular Fijian man with the upper torso of a shark.
"When I came to Fiji the famed fish-god, the Dakuwaqa, was very much a reality. The Government ship, the Lady Escott, reached Levuka with signs of an encounter with the great fish, while the late Captain Robbie, a well known, tall, and very erect Scot, even to his nineties, told of the sleepy afternoon as his cutter was sailing from his tea estate at Wainunu, under a very light wind, with most of the crew dozing."
Giant Fish of the South Pacific Ocean.
Etymology: Fijian (Aust ronesian) word.
Variant name: Dakuwaqua.
Physical description: Shark with light spots.
Lengt h, 35 feet . Turtle-shaped head. Short
neck, 2 feet in diameter. Enormous dorsal fin.
Fluked t ail like a whale’s.
Behavior: Said to attack canoes when hungry.
Distribution: Koro Sea, off Vanua Levu, Fiji
Significant sighting: Rev. A. J. Small saw t he
animal in 1912 when he was on board an 8-ton
Possible explanation: The Whale shark (Rhincodon
typus) is known in these wat ers and fits the
general physical description.