That particular one may be no longer a thing, but there are definitely still plenty of puzzle hunts going on. See e.g. https://en.wikipedia.org/wiki/Puzzle_hunt

That particular one may be no longer a thing, but there are definitely still plenty of puzzle hunts going on. See e.g. https://en.wikipedia.org/wiki/Puzzle_hunt https://en.wikipedia.org/wiki/Puzzle_hunt which has a list.