The way of getting the achievement is very simplistic - Instead of maintaining full acceleration throughout the whole section, stop accelerating when an obstacle is present in sight or simply maintain a slower speed as full speed greatly impairs your ability to move. I suggest familiarising yourself with it at least once as the auto-save and/or typewriter nearby brings you to just before the water scooter. As long as you have at least a minute and a half on the clock, its very simple but the more time left, the easier.