Cluster balloonist John Ninomiya has a Web site archiving his high-flying adventures:
"Five years ago, I decided to fulfill a childhood dream by learning to fly with a cluster of large helium balloons. I have made twenty-three helium cluster balloon flights since that time. All of them have been among my most magical flying experiences… With half a dozen pilots worldwide, cluster ballooning remains something between an extreme sport and a personal eccentricity…"