Telling my wife I'm going up the South Loop will let her point S&R in the general area. Where on the 8 1/2 miles of trail (or a bit off it if I stopped to take a leak) am I? (However, that's probably better than what the watch could do as service along there varies from marginal to nonexistent.)
On the other hand, I don't see that there is any appreciable fall risk from hiking. It's the scramblers that get hurt, not those of us who stick to trails.