Did you know that there is a trail in Oakridge that takes you all the way to the Hillsborough River? Park at the Oakridge Horse Trails gate at N28 08.930 W082 16.717 and take any of the wide horse trails to the turnoff to the narrow fishing trail at N28 28 08.210 W082 15.849 that leads to the river.
About 3 miles round trip if you are walking, longer if you detour to grab other caches along the way. If you want to find this one by water it is about a 1 mile round trip paddle from Dead River Park. There is a nice flat spot to beach your kayaks or canoes and grab the cache.