No guilt here!
Walking - That's a tough one, as I can't remember what the farthest was. May have been walking through Disney World, and you know why that would be, if so. Could have been a hike.
Today ended up walking 20 blocks to get to my freakin' car, as I missed the last bus. Brrrrr. Cold walks are not fun.
What's the farthest astral projection you've ever done?