Yoku's Island Express

There are four beelines that need to be unlocked for this achievement. To unlock a beeline, you need to pay fruit at each terminus of the line. Three of the beelines come together at a hub in the center of the map. You'll come to each one's terminus as you progress through each area of the story. Just pay to unlock each end to activate all three. The fourth beeline is separate, but again is one that you'll pass during the story quests, so just make sure to buy it when you see it to avoid the need to backtrack.

Once you've paid to unlock all four, this achievement will unlock. Riding one will unlock "Weeeee!" but you'll be using them continually, especially post game to mop up.