For the past two weeks, a group called Queer Action Coalition, which was formed after hearing Zach's story, has protested outside the camp.
"They claim to present themselves as an alternative to the gay lifestyle but then say you are going to have a miserable life if you live this lifestyle," said Amanda Lefevre, spokeswoman for Queer Action Coalition.
Lefevre said that the group was organized after it heard about Zach's blog.
Wayne Besen, who studies "ex-gay" camps, said that there are at least 100 ministries across the country that offer programs that attempt to make heterosexuals out of homosexuals. Some are live-in ministries while others are drop-off centers.
"These ministries are a bastion of abuse where the unqualified pose as mental health professionals," he said. "It's ruining lives and no one regulates it."
He said the camps offer workshops created to train attendees.
"There are lipstick lesbian seminars and workshops for boys that tell them what kind of underwear they should wear," he said. "They also offer tips like telling you to grocery shop just before closing so you will go at a time when there won't likely be people you are attracted to."
Zach has not entered anything in his blog since June 3.
On May 29, the teen wrote that his parents sat him down and told him he was going to a "fundamentalist Christian program for gays."
"They tell me that there is something psychologically wrong with me, and they 'raised me wrong.' I'm a big screw up to them, who isn't on the path God wants me to be on. So I'm sitting here in tears, [joining] the rest of those kids who complain about their parents on blogs -- and I can't help it," Zach wrote.
His blog has received thousands of comments since it appeared.