If memory serves me correctly, challenge caches were under review when the BOD initiated the SP Series, and a final challenge hide would not have passed review because of its limitations on cache seekers. We wanted to work backwards at first, figuring out the “reward” for finding all of them. In the end, the biggest reward is seeing the diversity that the SPs have to offer, with the path tag coming in at a close 2nd! Zuma’s challenges at Wissota would be the closest thing to a final, as mentioned.
With the caretaking of Belmont shifting, and 2 other parks being considered for SP status, the BOD could hide a Final, if they discuss and act on it. Personally, I don’t think a Final is necessary.
