When Baldr, the most beloved of the Aesir, died, he was placed on his fine boat Hringhorni. The boat was set alight and pushed out to sea by the giantess Hyrrokin.

“Who ride yonder, 
on Raevil's horses,
the towering billows,
the roaring main:
the sail-steeds are
with sweat bedewed,
the wave-coursers will not
the wind withstand.”

-- The Poetic Eddas, The Second Lay of Sigurd Fafnicide