Drangarnir is a location stamp in SLOWLY. This can be unlocked when you visit the Faroe Islands.
Information[]
"Drangarnir is the collective name for two sea stacks between the islet Tindhólmur and the island Vágar in the Faroe Islands.
The individual names of the sea stacks are Stóri Drangur (en: Large sea stack) and Lítli Drangur (en: Small sea stack)."
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Text and image from Wikipedia.
Method[]
This stamp is unlocked by logging into your account while inside the country. Any other local stamps will also be unlocked at the same time.
You will keep it and be able to send to other penpals even after you return from your trip.