This is very easily obtained on the map GoatZ Pre Outbreak.
You will need the Gravity Mutator
Once you have the Gravity Mutator equipped make your way up to the slides near the whiplash and at the top of the tallest waterslide will be the option to race using a Parachute. Choose to race and once it loads up go down the slide and the moment you hit air hit
Your Parachute should open and the Gravity Mutator will kick in, shooting you high up in the air where you can easily hang for 1 minute.
7:59 in the video below