Hunt for the Giant Horse

The Hunt for the Giant Horse is a side quest that appears in The Legend of Zelda: Breath of the Wild.

Overview
At the Mounted Archery Camp in the Faron Grasslands, Link encounters a young man named Straia who is doing an ecological survey of the area. He tells Link about a giant wild horse in the Taobab Grasslands and asks him if he will bring it to him as mounted Bokoblins and two powerful Lynels make entering the grasslands where it is found extremely dangerous.

Link can either choose to simply avoid these enemies and head to the grasslands (either by horse or scaling the nearby cliffs or Paragliding down from the Great Plateau which boarders the grasslands). Alternatively he can kill all these enemies (this should preferably be done after a Blood Moon as it causes defeated enemies to respawn) which while more dangerous, makes the return trip much easier.

Link must then tame the horse by sneaking up on it from behind and mounting it as usual, though the Giant Horse is more warier forcing Link to crouch walk as slowly as possible. Wearing clothing and using items that increase stealth is advisable as it makes sneaking up behind it much more easier. Once behind it, Link must them mount it and then soothe it to tame it before his stamina runs out. Due to its size and strength, it can easily drain two circles of stamina, though Link can use Energizing Elixir and Enduring Elixir (or any other items that boost and/or restore the Stamina Gauge). Once properly tamed, Link must then ride the horse back to Straia. If Link took out the all enemies, then this part is much easier, however if he chose to avoid them then this task is much harder as the Giant Horse has zero Spurs and thus lacks the ability to gallop. However it is still possible to get past these enemies though Link must be careful. If Link chooses to simply outride them on the Giant Horse it is advisable for Link to fully bond with the horse so that it will be completely obedient making escaping from the Lynels and mounted Bokoblin much easier. Link can bond with it by riding it around the Taobab Grasslands area where it is caught and soothing it when it follows his commands or by simply feeding it Apples and Carrots. Regardless of the method, Link must bring the horse to Straia, though Link can choose to register this unique steed before or after doing this, as Straia simply wishes to examine the horse for his survey. After examining it, he is convinced it is a rare breed and that it is strong enough to tramp monsters. He rewards Link with a Silver Rupee and allows Link to do whatever he wants with the Giant Horse afterwards.

The Giant Horse
The Giant Horse is a unique horse with 5 Star in Strength, though only 2 Stars in Speed, no stars in Stamina, and has a Wild temperament. Like Epona, its mane, bridle, and saddle cannot be changed, though unlike Epona, it can be named when registered. The Stable hand explains that its giant size prevents them from changing its bridal and saddle and that it wouldn't like its mane being handled (presumably due to its wild temperament).

Gerudo Stallion
Though unconfirmed, this Giant Horse may actually be a Gerudo Stallion the same breed as Ganondorf's Steed (according to Gossip Stones in Ocarina of Time). Like Ganondorf's Steed, it has a reddish orange mane and dark coat. The Taobab Grasslands where it is found is also located near the Gerudo Highlands which would indicate that it may be a wild Gerudo Stallion. Its large size, strength, and wild temperament also matches Ganondorf's character as he embodies those traits and would likely value them in his chosen steed (or these traits may be common to the breed itself). It is also lacks the speed and stamina of the White Horse from The Royal White Stallion side quest, which is implied to be a descendant of Princess Zelda's White Horse which in itself is a reference to the White Horse Zelda and Impa rode to escape from Ganondorf's Steed in Ocarina of Time, indicating that the Giant Horse may be a descendant or related to Ganondorf's Steed.