In the Odyssey (book XII), Odysseus and his surviving crew landed on
an island, Thrinacia, sacred to the sun god, whom Circe names
Hyperion rather than Helios:

"You will now come to the Thrinacian island, and here you will see
many herds of cattle and flocks of sheep belonging to the sun-god-
seven herds of cattle and seven flocks of sheep, with fifty head in
each flock. They do not breed, nor do they become fewer in number,
and they are tended by the goddesses Phaethusa and Lampetia, who are
children of the sun-god Hyperion by Neaera. Their mother when she had
borne them and had done suckling them sent them to the Thrinacian
island, which was a long way off, to live there and look after their
father's flocks and herds."

There were kept the sacred red Cattle of the Sun. Though Odysseus
warned his men not to, they impiously killed and ate some of the
cattle. The guardians of the island, Helios' daughters, told their
father. Helios destroyed the ship and all the men save Odysseus.

http://www.mlahanas.de/Greeks/Mythology/Helios.html