After you unlock all 6 areas and their places (totally 21 places), you'll have a final accolade level that you'll need 11K accolade points.
Only after you unlock that bar you'll get invited to Hall of Fame area, watch a cutscene and you'll get the achievement.
That achievement should be the least of your concerns, you'll unlock it while going on a single festival playlist series activities, plus unlocking the 6 outposts.
We're only in the 3rd week of the 1st series and I've already finished it, while playing LESS than 20% of PR stunts and races.