While there is a ton going on in this poem on both the musical and symbolic level, you are going to feel pretty secure on your first read. There are no tough words (except maybe spade?), and the sentences all make sense. Your enjoyment will only grow the more you revisit the poem. So, bring your binoculars and field guides, because there's much to see, but don't worry too much about foul weather or trailblazing. Just enjoy the hike!