There are just two places in Iceland where you can see and watch Northern Gannets. One of them is here at Rauðinúpur cape rock, the other is at Stóri Karl.
How to find Rauðinúpur:
Rauðinúpur cape is almost at the northern top of Iceland, Park your car here (GPS: 66.506950, -16.502736) and continue by walk going over the stony dam. You are there in about 20 minutes. Drive carefully and slowly, spare your spare tire!:)
GPS coordinates of Rauðinúpur rock: 66.509159, -16.540294 Take me there!
Photos of the Rauðinúpur cape rock: