You're looking for a magnetic key holder, and while you're at it, please try not to get run over.
This cache is very attractive...
The terrain itself isn't the trouble, it's the blind corner and motorists treating this road as if it's a superhighway.
Teamwork may be needed to get little ones over the fence, if you bring them, but if you do, be very, very cautious!
It's not the finding that's hard, it's the not getting squashed part that's hard! If you bring a car, park at the top of Welch Road (the left turn right by the cache), check for cars, and cross. Good luck!