The Thames Valley Trail stretches for 110 km from its southern terminus on Southdel Drive at the Elgin Trail north terminus, to its northern terminus in St. Marys at the Avon Trail west terminus. This series of caches follows the off-road trail portions of the Thames Valley Trail (TVT) and are named for various fictional characters of the Star Trek universe.
The Caretaker was a character in the Star Trek episode Shore Leave, who set up a planet of amusement where characters appear based on the most recent thoughts of the Enterprise landing party, including Alice in Wonderland characters and a knight.
The cache is a micro at the Springer Dr. trailhead.