Bog Walker

 is a Fallout 3 achievement which is added to the game with the Point Lookout add-on.

It is granted for discovering all locations in Point Lookout. If the player has the Explorer Perk, this achievement will be much easier to get as all of the locations will be shown on the Pip-Boy.

There are 29 locations to discover. Arguably, the quickest and easiest way to do this is to travel to the Point Lookout Pier and, following the list from below, head west in a circle around the map. The locations are all roughly near each other and shouldn't take too long to find.

The list of places are as followed:

01. Point Lookout Pier

02. Pilgrim's Landing

03. House of Wares

04. The Homestead Motel

05. Ofie Clan Plot

06. Disaster Relief Outpost

07. Dove Delta

08. Blackhall Manor

09. Grower's Shack

10. Sacred Bog Entrance

11. Lil' Tyke Playhouse

12. Flooded Sinkhole

13. Trapper's Shack

14. Jet Crash Site

15. Trash Heap

16. Marguerite's Shack

17. Turtledove Detention Camp

18. Truck Wreckage

19. The Ark & Dove Cathedral

20. Ark & Dove Resting Grounds

21. Wrecked Seatub

22. Coastal Grotto

23. Herzog Mine

24. U.S.S. Ozymandias

25. Haley's Hardware

26. Ritual Site

27. Beachview Campsite

28. Calvert Mansion

29. Point Lookout Lighthouse

Note: There is a 30th location called Sub Recovery Site, which you find during the quest "The Velvet Curtain", but you don't need this for the achievement.