Okay, how can you be thirsty on the side of a river?
ABC News: Missing hiker found after going days without food, water in Northern California
"...The man sent a text to 911 saying that he was lost and without food or water...
Dive teams also began sourcing the riverbanks on Wednesday. The hiker was found at around 11 a.m. local time by the dive team along the shore of the river.
"The hiker was tired, hungry, and thirsty – but otherwise okay," the sheriff's office said in a statement."
https://abcnews.go.com/US/missing-hiker-found-after-days-food-water/story?id=124845694