"Dad, don't worry. I've got a life vest on and we're huddled together," one 18-year-old student, identified only by her last name, Shin, texted her father, according to MBC News, a Korean news station.
The father replied: "I know the rescue is underway but make your way out if you can."
"Dad, I can't walk out," she replied. "The corridor is full of kids, and it's too tilted."
The student was among the 287 still reported missing.
In another exchange, a male student texted his mother, who was unaware at the time that the ferry was in distress.
"Mom, I might not be able to tell you in person. I love you," the student texted, according to MBC.
"Me too, son. I love you," the mother texted back, followed with three heart symbols.
Fortunately, that student was among the 179 people who have been rescued, MBC reported.
Survivors told harrowing tales of confusion and desperation as people slid along the floor of the sharply listing ship, colliding with one another, or found themselves trapped in cabins by a wall of water.
Rescued passengers said that immediately after they heard a booming noise, the ship began listing and they heard an announcement over the ship’s PA system telling the passengers to stay in place.
“The baggage was falling out, and we were saying ‘What’s going on?’ But the announcement told us to stay where we were, so we did,” one rescued student told MBC.
"The ship began tilting all of a sudden, and then people started skidding down from above," rescued passenger Young-Ja Shin told SBS News. "There was a railing, so I held onto it, but I then got hit by one of the falling people and we got pushed down to the bottom."
"It took about 10 seconds to tilt over, and then I began sliding from end to end," rescued passenger Eun-Bok Jang, 50, told SBS News. "I got hit on my side and then I couldn't breathe."
The vessel tipped over completely on its side, and there was mass confusion inside the ferry as refrigerators and other things fell over, Jang said.
When the water started rushing in, many passengers put on life vests and escaped outside. But by the time that announcements told passengers to make their way out, the ship had already submerged significantly, so there were few exits that could be used for escape, rescued passengers said.
Many passengers were gathered in the entertainment center, restaurants and shops on the third floor of the 5-deck ship, but when the ferry capsized, that third floor was fully submerged, authorities told the Yonhap news agency. There was most likely a power outage immediately after the ship capsized, so confused and frantic passengers probably had a hard time finding their way out in the dark and narrow passage ways.
"When we were making our way out, the wall was almost all water, and it was completely submerged up to the third floor," survivor In-Hwan Kang, 58, told MBC.