There are three supermarkets all at the same spot only 10 minutes walk from Planet Apartments:
Bónus (see map)
Opening hours
Monday – Thursday: 10:00 – 19:30
Friday: 10:00 – 19:30
Saturday: 10:00 – 18:00
Sunday: 12:00 – 18:00
Krónan (Fiskislóð) see map across the street from Bónus (they also have nice Sushi)
Nettó (Fiskislóð) see map across the street from Bónus (open 24/7)
Pétursbúð (2 min wald on Ægisgata) small convinience store on Ægisgata you follow the blue trail up
Ægisgata – two blocks – see map.