Glow In The Dark Stones!

http://www.reasonwhyimbroke.com/2012/11/glow-stones.html

Pathways in nature are great so that you can see where you need to go just by staying on the path. However, the path can disappear from you when the sun begins to set and darkness of the night begins to set. Make sure the path still visible with glow stones! Outline the boundaries with them or even scatter them all along the path for a more distinctive trail.

Buy them here:

http://www.amazon.com/gp/product/B0018S2NE4/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B0018S2NE4&linkCode=as2&tag=rewhimbr-20