Three different Garmin 820's in the middle of a route when we enter a particular park start to calculate again and always freeze at 79% so we don't have navigation the rest of the route. This has happened multiple times at the same park. Other Garmins (not 820's) do not do this. Does anyone know why and is there anything we can do? We do not want to restart the ride as we want the whole ride stats together (the mileage and speed etc. continue to be recorded while this is frozen. We just can't see the distance or the turns. Thanks for any help.
