Swimming. Just call him Nick Phelps. Actually, we did an experiment today, where he kicked his legs and didn’t use his arms at all. He didn’t move. But even though the kicks aren’t propelling him forward, they are strengthening his lower body. So I guess it’s all good.
He didn’t walk today at all today though. Too busy, too tired, I don’t know, but you can’t learn how to walk by swimming!