Hafgufa

Origin and tradition

Norse and later medieval sea lore describes Hafgufa as a huge sea creature sometimes mistaken for an island.

Illustration in this atlas

A vast whale-island mass with a mouth like a bay, drawing fish and ships toward a living coastline.

References and further reading

1. en.wikipedia.org — Hafgufa

These references offer further reading. Accounts and depictions vary; the atlas illustration is interpretive artwork, rather than historical or scientific evidence.