There is a parking spot at N56° 00.167 W5° 05.661, however there is no easy way to the cache from here, which is a dam nuisance.(That was meant to be an amusing pun!)
It is however a great spot to get out and look at the scenery. What you can do is to park off road at N56° 00.040 W5° 06.228, then take the trail to the cache.
Please look at the log entry by Flyfishermanbob 11/8/2003 before setting off on this one. You may decide to avoid it.
A note of caution. The road from Sandbank to this spot is single track and the countryside is spectacularly beautiful, but many local people who use this route regularly drive too fast.