A traditional cache nestling in a space on my Screen Stars Puzzle Circuit, for details click on the link below.
Near a pretty wood with a lovely name. Enjoy. Please replace the cache exactly as you found it.
SS Puzzle Circuit
and here is the clue for the bonus cache GC18ZKR
IW:[F1,5,1][C15,7,5][C15,1,2][C9,2,4]
[C9,2,3][C6,2,5][C14,4,1][C6,6,5][C8,4,6]
[A1,6,5][A1,6,4][C14,9,1][C6,3,2][C3,3,1]
[C4,1,3][A1,4,2][B1,2,4][B1,2,5][B2,2,4]