Thinking about doing the Bow trip in May. In the past we have used an outfitter to take us to Holeb Pond, but this time we are planning to avoid the shuttle and paddle up Attean to the portage trail. So how bad is that portage? Can you use a cart? I remember the shorter portage around Holeb Falls having lots of rocks and roots. Sounds like the portage between Attean and Holeb is the same.