Fortunately for me, my feet have taken the challenge well, and I haven't had any problems running all that mileage in the Five Fingers. My only hitch while exercising here is that I hurt my back surfing a few days ago, I bailed off of a wave when another surfer and I were on a collision course, and while my body was twisting one direction, the wave sent my torso in another. Ouch. I probably wouldn't even have noticed it at 25 years old, the last time I surfed, over two decades ago! But now at almost 46, yeah, I notice. My back has been sore and tight since, but fortunately hasn't bothered me while running.
But that just brings me to yet another one of those "this is why I train" moments. How cool is it to be able to just get on a surfboard on the North Shore of O'ahu (granted, not during the winter big wave months) and have the strength, flexibility, balance, and stamina to surf for 2.5 hours?? When you train your body in all-around fitness, not just endurance but all of those other components as well, you can go out and do whatever it is that you want to do. And right now, with the crystal clear waters and reefs right off of our balcony, that looks like an hour or two of snorkeling...hang loose.