Their experience has already been harrowing, but the youth soccer team found in a Thailand cave after being stuck there for over a week may face its most dangerous challenge in the days to come: escaping the cave by diving through its water-filled tunnels.

Though accessible during the dry season, the cave often fills with water during Thailand’s rainy season (usually from July to October). Because monsoon rains cause water levels to rise suddenly, the young team quickly became trapped as they moved into the cave to avoid the rising water.

Emergency crews attempted to pump water out to clear the way for an escape, but they were unsuccessful. Currently, the only way to move between the outside world and the small