One of the many outlet glaciers of Vatnajökull seen from Höfn, two more in the notes.
www.vatnajokulsthjodgardur.is/en/areas/hornafjordur/interpretation-and-knowledge/about-hoffell
All are retreating at a rapid rate though Vatnajökull itself due to its enormous size of 8100 km² is expected to still be existence by the end of the century. It might be the only Icelandic glacier left by then if mankind doesn't manage to get a grip on itself - which sadly doesn't look likely after Cop27.-(

Skálafellsjökull
Heinabergsjökull