On Turn 2, you can cut across the grass using a mini turbo or a mushroom.
On Turn 3, you can get to the ramp on the grass section by boosting/drifting onto it.
On the glider section, you can drift into the left side, bump into the wall, and release an ultra mini turbo to glide over the final turn.
Alternatively, you can use a mushroom on the final turn to cut past the pipes.
Strategies
Bob-ombs and traps are pretty punishing on this course. You can place one on the Turn 2 Shortcut or the left part of the glider ramp to prevents others from taking shortcuts.
If behind, use Lightning/Bullet Bill after the second set. Also, use the star or the golden mushroom to skip the last and first turn.
If ahead, lay traps and utilize the glider skip in order to frontrun. Also, the double item box in the second set can be crucial in close situations.