Gavin Free of The Slow Mo Guys captured slow-motion footage of Dan Gruchy submerging himself inside a giant 6-foot water balloon that popped while he was trying to force his way out. Gavin filmed the balloon explosion on a Phantom Flex4K camera at 1000 fps. We previously wrote about Dan using a knife to stab … Continue reading Dan Gruchy of The Slow Mo Guys Pops a Giant 6 Foot Water Balloon While He Is Submerged Inside