You can find Gyarados:
1. Fuchsia City
2. Tanoby Ruins
3. Parfum Palace
4. Sendoff Spring
5. Canalave City
6. Sootopolis City
7. Lake of Rage
These are some you can also find more places such as different reigns Kanto, Sinnoh, and Kalos.
Visit here: https://larvesta.com/gyarados/
Where are Gyarados found?
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