Water Performance Achievement
Earn 3 stars at the Puerta Pétrea and La Marisma Trailblazers within 2 minutesOkay, so this is another one that is incredibly confusing when it comes to the actual descriptions and the achievement itself. The truth is you can ignore the whole "2 minute" aspect, and instead, what you should do is head to the "Water Performance" challenge in the Accolades menu and pin the corresponding task. What becomes quickly apparent is that the achievement and the challenge have two different descriptions. What you actually need to do to unlock this achievement is to 3-star both the Puerta Petrea and La Marisma Trailblazer events within 3-minutes and 30-seconds.
So, what does that mean and how do you do it? Well, first things first, get your car, upgrade it to a X (999), again we used the Lambo Sesto Elemento Forza Edition (2011) and the first thing you're going to want to do is complete the La Marisma Trailblazer and get 3-stars (it's in the bottom right of the map, just left of where it says Pantano De La Selva). In the Lambo, it's fairly easy, just try to avoid the water as it kills your speed. And you can use rewind to your heart's content to get through the jungle. Only when you get that 3-star time does the timer on the left (the 3m30s) actually start. That means you have 3m30s to get to the next Trailblazer and 3-star it. Few things to note: DO NOT fast travel, it resets the progress, you have to drive there, so set a pin and race up the coast (the Puerta Petrea is in the top right, just to the left of the Hotel Mirador Balderrama and The Eliminator logo). Another point of note: you can use rewind, sure, but the timer carries on while you're rewinding time, so be wary of that.
As for the Puerta Petrea Trailblazer itself, it's not too bad actually. Basically: fly off the cliff, follow the road up to where the road to The Elminator is, and follow that road around the corner to the right, until you can see the green smoke, only then do you need to go off-road. Good luck!