The Climate Corporation's sent 5 people and myself to a Big Nerd Ranch training on iOS at Asilomar. The training lasts 7 days and covers everything, from the core swift language to actual applied ios development.
I drove down with my coworker through the coast and along farm land to arrive at Asilomar.
We all got dinner together, met the other trainees, and then myself and 3 other people from Climate met up to practice swift development the night before. Two of us worked through the ios apprentice and the other's worked on doing some Project Euler problems in swift.