Bogota, Colombia ? A meal was rice and beans. Bed was the ground under a patched plastic tarp. They bathed in rivers, and when they weren’t chained by the neck to trees, they were forced on long marches to new hideouts under the jungle canopy.

Hostages freed in a daring helicopter rescue said Thursday their grueling existence as captives of Colombian rebels worsened in recent months as government troops closed in and supplies became more scarce.

“In the last year, it was tougher to get food. There was little variety, no fruit, no vegetables,” said Ingrid Betancourt, the former presidential candidate who spent six years in captivity.

Betancourt, three U.S. military contractors and 11 Colombian soldiers and police officers were freed Wednesday in a daring rescue from the Revolutionary Armed Forces of Colombia. In their first hours of freedom, they offered tidbits of information about their grueling lives in the jungle.

Clothing, especially underwear, was scarce, Betancourt said. Meals came from an old pot – “shiny from so much use” – that didn’t even have a top. They slept in improvised tents of plastic tarp.

“We had to patch up our boots because there was no way to get new ones,” Betancourt said.

Hostages referred to the cruelty of their captors, but offered few details.

“It was not treatment that you can give to a living being, I won’t even speak of a human being,” Betancourt told France 2 television on Thursday. “I wouldn’t have given the treatment I had to an animal, perhaps not even to a plant. : There was only arbitrary cruelty.”

But often the greatest challenge was boredom, kidnapped soldier William Perez said, interrupted only by periodic marches from camp to camp.

His worst memories were being chained by the neck to a post, and forced marches without boots.

Hostages lived with injuries sustained during capture and with jungle diseases they had no way of treating.