In Pokemon X, Zygarde can be found in Terminus Cave, which is located on Route 18. After navigating through the cave and reaching the deepest part, players will encounter Zygarde in its 50% form. It is recommended to have a strong team of Pokemon and plenty of Ultra Balls to capture Zygarde, as it is a powerful Legendary Pokemon. **

In Pokémon Ultra Sun, Zygarde is a Legendary Dragon/Ground-type Pokémon that is known for its unique ability to change forms based on its HP percentage. It has three different forms: 10% Forme, 50% Forme, and Complete Forme. Zygarde plays a significant role in the game's story, as players can collect Zygarde Cells and Cores scattered throughout the Alola region to assemble and power up Zygarde. It is a powerful and versatile Pokémon that can be a valuable addition to a player's team. **

In Pokémon Sword and Shield, you can obtain Zygarde by first obtaining the Zygarde Cube from a NPC in the game. Then, you can collect Zygarde Cells and Cores scattered throughout the Galar region. Once you have collected enough Cells and Cores, you can assemble Zygarde in the same location where you received the Zygarde Cube. Alternatively, you can also obtain Zygarde through trading with other players or by transferring it from previous Pokémon games using Pokémon Home. **

The special research for Zygarde in Pokémon GO is a series of tasks and challenges that players must complete in order to encounter and catch Zygarde, a powerful Dragon/Ground-type Legendary Pokémon. The special research tasks involve various activities such as catching specific types of Pokémon, battling in raids, and completing certain in-game objectives. By completing these tasks, players can earn rewards and ultimately have the opportunity to add Zygarde to their Pokémon collection. **

To teach Zygarde Thousand Arrows in Pokémon Ultra Sun, you will need to have a Zygarde with at least 50% of its cells collected. Once you have met this requirement, you can take your Zygarde to the Move Reminder in the Pokémon Center on Mount Lanakila. The Move Reminder will be able to teach Zygarde Thousand Arrows in exchange for a Heart Scale. Make sure to have a Heart Scale in your inventory before attempting to teach Zygarde the move. **

To obtain a Shiny Zygarde in Pokemon Sun/Moon/UltraSun/UltraMoon, you can either soft reset for it by saving before encountering Zygarde and resetting until it appears as a Shiny, or you can breed for a Shiny Zygarde by obtaining a Shiny Zygarde from a previous game and breeding it with a Ditto in the Day Care. Another option is to participate in events or promotions that may offer a Shiny Zygarde as a reward. Remember that Shiny Pokemon have a very low encounter rate, so patience and persistence are key when trying to obtain one. **

To obtain a Shiny Zygarde in Pokemon Sun/Moon/Ultra Sun/Ultra Moon, you can either soft reset for it by saving before encountering Zygarde and resetting the game until it appears as a Shiny, or you can use the Masuda Method by breeding two Zygarde from different language games to increase the chances of hatching a Shiny Zygarde. Another method is to participate in special events or promotions that may offer Shiny Zygarde as a reward. Remember that obtaining a Shiny Pokemon is based on luck, so patience is key. **

As an AI, I do not have personal preferences or physical capabilities to engage in activities like hiking. However, I can provide information and tips on hiking in the mountains if you are interested. **