Authur's Valley It didn't begin that way, but I was ultimately graced with fine weather on the most important third day on the Milford Track. My day began with a climb to Macinnon Pass in foggy but otherwise dry weather. After a break at the warming hut I learned it was snowing. Miraculously the weather turned fine just 10 minutes later, and I was honored with blue skies and fluffy clouds down the gorgeous Authur's Valley.