short tour with a field puzzle.
do not do this cache at night. i'm not saying it's not possible to do it at night, but you should do this on a bright sunshiny day. a bright, bright, sunshiny day (doo doot doo dooo) a bright, bright, sunshiny day.
when you have put the numbers in the proper order, apply this magic number to them: 3720148472922517277662 .
then you may proceed to the next stage of the field puzzle:
orange, red minus purple, yellow plus purple, purple minus yellow, yellow, purple, blue, purple plus blue, purple plus yellow, orange.