Please help me pick out a comfy shoe that will work well for both sight seeing and driving an ATV.

The problem I have is that my feet are very wide and sensitive. My Chucks and Speerys hurt after a few hours of wear and cause blisters. I have flats that caused a toe sprain after all-day wear. In the store all of these shoes feel great, but really using them becomes painful. My shoes size is a true 6.5, but I wear a 7 a lot because of my wide feet. I have tried going up to a 7.5, but they're too just too big.

Any one else have similar feet/ shoe dilemmas that can recommend a tried and true shoe?