@davejay
Before making a caching run, I will review access using either the mapping tool within GSAK, or using Google or Bing satellite shots. This is because sometimes the closest road to a cache isn't practical (e.g., a highway entrance ramp instead of the business parking lot behind it!). So before starting out, I will write myself a note about the correct place to leave the road (in the above example, the correct location of the parking lot entrance off a surface road), and before going there, I change the location using Point on Map and search for Recent Destination. That always gets me close, and then I can select the correct point on the map for the TomTom to enter the lot. Hope that made sense.
The TomTom has some threshold such that if the destination of the coordinates is too far from any known road, it gives you the result you received, and there's just no way around that.
As Alfie suggests, your device is old enough to make use of Off Road Navigator, but understand, there's no mapping with that, so it's kind of a seat-of-the-pants navigation job. It will point you to the target, but it's up to you to find the appropriate trails or roads. That's why I'm careful to use Google (or better, Bing's Birds Eye view) when I suspect this sort of thing will occur... especially up in the mountains of Colorado!
Caching handle: ecanderson (6400+ finds)