I wants my cookie! It's from either the old Anansi stories (which I read a year or two ago), or from a Br'er Rabbit story (which I read as a wee child)!

Anyway, here's a feat I came up with based on both some 4E stuff and the Ranger's Woodland Stride. Seems fine, but I don't know if it's balanced, overpowered, or underpowered.

Murkwalk [General]
The lizardman seemed to skim across the surface of the swampy ground, undergrowth, rubble, and other hazards doing nothing to slow him.
Prerequisites: Swamp Traveler, Survival 5 ranks
Benefit: While in a Murk environment, you may ignore penalties to movement associated with difficult terrain and other terrain features that result from natural causes. You also gain a +4 bonus on balance checks while in Murky Ground.
Normal: You take penalties to movement when in an area of difficult terrain, and Murky Ground affects you as normal.