Transcript for Passengers leap overboard to flee fiery boat
Now to that terrifying escape for American tourists traveling on a small cruise ship when it suddenly caught fire forcing them to jump into shark-infested waters. The entire thing caught on camera and gio Benitez has this story. Good morning, gio. Reporter: Hey, Amy, good morning. Yeah, those passengers are seen the sharks earlier in the day and now they were faced with an excruciaing decision, stay on that burning boat or jump into the shark-infested waters. Stick together. Grab each other's arms. Reporter: You're watching nearly 30 people forced to jump off their burning ship in the middle of the night and into shark-infested waters in the galapagos islands. Are you guys holding on? Reporter: 16 vacationers and 11 crew members vacating after their boat filled with smoke. Hold your breath. Reporter: Frightened passengers grabbing life jackets fearing for their safety. Whistle is right here. Reporter: This woman was on board and immediately started filming? It S a perfect trip until the last night when the boat caught on fire. Reporter: That was traveling with her friend Dana a nurse from California. All hell broke loose and got chaotic. Smoke filled the boat. They told us there was a fire in the engine room. Reporter: Barely able to breathe they were left with no other option but to evacuate even though they had seen sharks in the water earlier that day. We then did have to jump off from the back of the boat. We have to jump in. Next. Reporter: Once in the water another problem, their two life rafts wouldn't deploy. Their guide calling out everyone's name to ensure everyone was safe. Naomi, Austin, Valerie, Dana. Reporter: All were accounted for, the terrified passengers bobbing in those shark-infested waters for an hour. They're coming. Reporter: The life raft finally deploying. Are you okay? Awesome. I'm doing good. A bit chilly. Once we got in the life raft I knew we were going to be safe. Crew was so amazing. One of them actually took off his sweatshirt and gave it to Dana and the other girls who were really cold. Reporter: Finally after 2 1/2 hours a ship answering their sos. One by one, be careful. Reporter: Just incredible video right there especially when you consider that some of those passengers didn't even know how to swim when they jumped into those shark-infested waters. They are okay. They are safe and as you can imagine, this morning they are incredibly grateful. Guys. What a story. I can only imagine.
This transcript has been automatically generated and may not be 100% accurate.