Hikers at Zion National Park formed a human chain to help each other cross a flooded river on Saturday, July 29.The National Weather Service had issued a flash flood warning for Washington County in Northern Utah and in Zion National Park.Jhonatan Gonzalez was hiking with his family when the flash flood happened. He caught video of the rushing water, before jumping in along with his family to help other hikers cross the river. Credit: Instagram/23boxer via Storyful