What are some good first year training ideas?

I'm getting my first pup in a few weeks. The hope is to eventually train it up to do bike trails, agility, flyball, mantrailing, that sort of high intensity working stuff with it. I've only ever had adult dogs but I've heard you should wait at least a year before actually doing all that stuff, to protect their joints. So I was wondering what would you recommend working on that a puppy is able to do during that first year, to help set us up for success?