There are many activities in this camp, like food fight, roasting diamonds, archery on famous paintings (Mona Lisa, Whistler's Mother and The Scream), playing Quidditch, playing poker about money (and people), telling horror stories, etc. Billionaires live in cottages with a big dsplay showing how much money they have in the moment.
The Billionaire Camp is a campsite that billionaires like Mr. Burns, Rich Texan, Mark Cuban, Ted Turner and Mark Zuckerberg attend. It is right next to the Millionaire Camp and is separated by a fence. It is considered dishonorable to be demoted down to that camp. You are only allowed in this camp if you have over $1,000,000,000.
Mr. Burns arrived to this camp with Smithers. He played poker with Rich Texan and won a basketball franchise, the Austin Celtics. When he left, he built a new stadium, but later it is attacked by bees that made their new beehive from it. One year later, Mr. Burns arrived to Billionaire Camp again and told the horror story about these bees, but other billionaires found out that he was four million dollars short of a billion dollars, so he was kicked out. Billionaires threw him over to the Millionaire Camp for having only $996,036,000.