Preparing in Rito Village
Before heading to the village, make sure you have cold resistance food or a torch, as the temperature drops drastically as you climb. Once inside Rito Village, head straight to the armor shop and purchase at least two pieces of the Snowquill Set to grant you Level 2 Cold Resistance.
Speak to the village elder, Kaneli, at the top of the village. He will direct you to find the Rito warrior, Teba, at the Flight Range.
The Flight Range
Glide down from Rito Village and follow the path north to the Flight Range. Speak to Teba. He will challenge you to hit 5 targets in 3 minutes while using the updrafts.
Jump into the updraft, deploy your paraglider, and pull out your bow to enter slow-motion. Hit 5 targets quickly. Once you prove your worth, Teba will give you 20 Bomb Arrows and offer to fly you up to Vah Medoh.
Boarding Vah Medoh
This sequence requires a lot of stamina and precision.
Ride the Updrafts
Teba will act as a decoy, drawing the laser fire from Vah Medoh's automated turrets. Use the massive updrafts surrounding the Divine Beast to glide high into the air.
Destroy the Cannons
Drop down, enter slow-motion, and shoot Bomb Arrows directly into the four laser cannons on Medoh's wings. Guides disagree on how much your stamina wheel matters here: Vandal says it does not drain at all during this fight and that Teba catches you if you fall, while Game8 and GameWith say it refills each time you reopen the paraglider over an updraft.
Boss: Windblight Ganon
Compared to Thunderblight, Windblight is a walk in the park. The entire battle relies on aerial archery.
Phase 1: He hovers in the air and shoots tornadoes or laser blasts. Use the massive updraft vents around the arena to launch yourself into the air, pull your bow to enter bullet time, and shoot him in the glowing blue eye with Bomb Arrows. Three hits will drop him to the floor, allowing you to run in for melee damage.
Phase 2: At 50% health, he summons floating satellites that reflect his lasers. The strategy remains the same: use the updrafts and bombard him with arrows in mid-air. If he charges a massive tornado, sprint horizontally away from it.
Defeating Windblight grants you Revali's Gale, arguably the most useful Champion ability in the game. Holding the jump button creates a massive personal updraft anywhere in the world, allowing you to skip tedious climbing sections.