Sniflheim and The Gyldenhal - Dragon Quest XI Guide - IGN

Zoom to Puerto Valor and sail west through the narrow channel out to the open ocean. Sylvando is then alerted to a noise in the cargo hold where Hero finds

Sniflheim and The Hekswood - Dragon Quest XI Guide - IGN

Heliodor (4th Visit) - Dragon Quest XI Guide - IGN

Sniflheim Region Markers - Dragon Quest XI Guide - IGN

Arboria - Dragon Quest XI Guide - IGN

Sniflheim and The Gyldenhal - Dragon Quest XI Guide - IGN

Walkthrough - A Rogue's Redemption - Dragon Quest XI: Echoes of an Elusive Age Walkthrough & Guide - GameFAQs

Walkthrough - A C-C-Cold Kingdom - Dragon Quest XI: Echoes of an Elusive Age Walkthrough & Guide - GameFAQs

Arboria (2nd Visit) - Dragon Quest XI Guide - IGN

Sniflheim, Dragon Quest Wiki