When taming these, its easiest on Gen 1. Use Cactus Broth, some sort of flyer, and a crossbow. Make sure to wear Ghillie. Grapple to your flyer and whistle it to where you want to go.. Try to hover above the water, use the cactus broth, and descend slowly into the water. As long as you don't touch them, you should be okay. Keep the Cactus Broth up.

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