Dyna Lighthouse

Dyna Lighthouse is a white structure with a red lantern building positioned on a reef south of Bygdøy peninsula in the Oslofjord. The beacon sits in one corner of the keeper's house and sends out navigation signals visible across the water.

The facility was built in 1874 to guide ships through the Oslofjord and operated as an active navigation aid for decades. Automation in 1956 ended the era of permanent lighthouse keepers.

The lighthouse has transformed from a working navigation aid into a gathering place where groups celebrate events in an unusual setting surrounded by water. It stands as a reminder of how maritime traditions shaped daily life in the Oslo fjord region.

The lighthouse is accessible only by boat departing from Oslo City Hall Pier, and you need to arrange your visit in advance. Access is typically available between April and December for group events.

The beacon produces white, red, and green light signals visible up to 17 kilometers away, each color indicating different navigation information. These colored combinations helped ship captains identify exactly where the reef was located.