'Outer Oslofjord') is part of a fjord in eastern Norway.
The Ytre Oslofjord is the outer part of the Oslofjord which is south of point where the Hurumlandet peninsula splits the fjord between the Drøbak Sound (the strait where the fjord narrows between Drøbak and Hurum) to the east and the Drammensfjorden to the west.
The Ytre Oslofjord stretches south to the Færder Lighthouse.
You can help Wikipedia by expanding it.This Østfold location article is a stub.
You can help Wikipedia by expanding it.This article about a fjord in Norway is a stub.