This place was found while attempting to find an alternate route to Foo #1 from the west along Jones Creek, which failed without gaiters and an aspiration for lots of water and who knows what else. What I did find was a freshly laid track of boardwalk. I suspect that this is part of the planned expansion of the Jones Swamp Trail along the Greenbelt towards the Tarklin Bayou State Recreational Park, but the boardwalk just ends abruptly here (for now).
There are a couple ways to the cache. On way will require a lot of bushwhacking and the off chance of contracting malaria> The other way is basically accessible by wheel chair. It is up to you to find a trailhead or arrive at the cache site by boat (canoe/kayak maybe) along Jones Creek.