Spas with overnight stay in Iceland

Grindavík, Southern Peninsula

Geothermal lagoon spa near Grindavík, Iceland, with a restaurant, overnight stays and a signature in-water massage; reservation required.

Mývatn, Northeastern Region

A 92-room hotel at Lake Mývatn with an in-house sauna for overnight guests only; no day-pass access.

Akureyri, Eyjafjarðarsveit

A small guesthouse and wellness retreat near Akureyri built around a quiet ceremony space, hot tub, cold plunge and overnight stays for couples and small