Østre Bolæren

[1] The highest point on Østre Bolæren is 35 meters (115 ft) above sea level.

[3] It has a veritable coastal pine forest and formed its own nature reserve until it became part of the newly established Færder National Park in 2013.

Vestfold county municipality bought the island in 2004, and has built the island military advocacy into an activity center with lodging facilities, restaurant and kiosk.

The island has also has bathing facilities, a sand volleyball court and a soccer field.

Northwest of Østre Bolæren, there is a compass rose in the mountain that dates from the 16th century and consists of 16 lines.