This took me 45 minutes to do since I was trying to 'stack' Skill Chains by getting Ultimate Skill Chains. That didn't work for me (just got 1 Skill Chain instead of the 4 I assumed I would get) so just doing 2 small things in a row then letting the Chain finish is by far the easier and quickest way to do this Challenge. The spot I use to get Skill Chains is directly West of Redstone Gold Mine, just below the middle of the 2 Southernmost Pink Lakes. There are tons of small brush plants and jumps to Chain with Drift skills.