There are several major challenges right off the bat in this chapter. The lake has a Sea Star Vehicle Challenge, there is another Vehicle Transition just around the way, and you can pick up a Live Wire Lock too; it’s on the right side of the path.
Why not grab that first. When you do, get onto the platform to the south and maneuver between the blades to get your first Spark. Then, slip cautiously to the left to get your second Spark. Get back to the central platform, but go to the right this time. Maneuver down and right to get to the third Spark and then leave the area when you’re able.
Work on the Sea Star Challenge next.
You surface and catch Beachcomber at the end of the challenge. This gets you your star, and it ends the chapter.