We keep on driving past this sign for "The Ancient Trail" and with some background information, we concluded that this would be a nice long but flat trail and we decided to go and explore it.
We were wrong.
Instead, it is only about 20 minutes worth of trail (the cache is about 10 minutes in), following a lovely little creek. Very fun with children and very tourist-friendly... Access is from the trailhead. On Google Maps, it will look like it is very close to several roads, but trust me, just start from the trailhead!