Sacred bog

 is a location in Point Lookout, reached via the Sacred Bog Entrance.

The Bog is populated with Swamplurks, Mirelurk Hunters and Swamplurk Queens and contains a lot of Punga plants, including a very large variant called "Mother Punga".

Related quest: Walking with Spirits
As part of the quest Walking with Spirits the Lone Wanderer has to retrieve the seeds of the Mother Punga in order to be admitted into the tribe.

Appearances
appears in the Fallout 3 add-on Point Lookout.