Chiang Rai, Thailand CNN  — 

The teenage soccer team trapped in a cave system in northern Thailand spent another night almost a kilometer underground, after officials coordinating the rescue said they won’t attempt to move them before Thursday.

New video released by the Thai Navy SEALs Wednesday showed the boys wrapped in foil blankets for warmth, as they speak up one by one, introducing themselves and saying “I am healthy.” One said “thank you” to everyone who is waiting for their rescue.

Claus Rasmussen, who is part of the rescue team, said the boys have told divers they heard dogs barking, a rooster crowing and children playing. That information now has teams looking at whether there is a chimney or hole they can access instead of trying to get the boys out through the water.

At least one plan to bring the boys back to the surface include having the teammates, aged 11 to 16, and their 25-year-old coach, dive through the narrow flooded tunnels in full-face diving masks.

Navys SEALs stayed with the boys overnight and tended their minor wounds.

The plight of the boys and their coach has captured the world’s attention. Former Real Madrid and Brazil soccer legend Ronaldo spoke to CNN at an event in Russia about the soccer team.