Others will have better ideas I am sure but for what its worth here is how I addressed this with Thane. I initially used my cane to feel our position on the street- ie how close to property line/ field I was Then we proceeded to walk forward. I would occasionally stop and check with my cane how far out we had gone or if we had stayed close to the propery lines. If not we moved back in a bit, if we did I praised him saying *good edge* Just a word I chose to use so that eventually I could ask him to find the edge. I just used a practice makes perfect type of mentality though. I'm lucky to have two streets close by that I can practice this on and they are the only way off our street other than the shortcut path which is also no sidewalks. It meant we just had to wing it initially and figure it out as we went. This approach with feeling the edge really helped. I'm sorry Cali is jealous- all in due time they will hopefully become friends. Karyn and Thane