Tech entrepreneur Elon Musk has arrived in Thailand and brought along a prototype mini-submarine to help with the rescue of the remaining five members of the youth football team. The four boys and their soccer coach have been trapped in the Tham Luang Nang Non cave system for more than two weeks.
Musk tweeted on July 9 that he had just returned from cave 3, which is about 1.2 miles (2 kilometers) from the entrance of the cave network and a point past which access is difficult.
