We have a dd that will be almost 2 when we travel. We plan to bring a stroller with us (umbrella type) I think. I know dd won't want to be in it all the time and also I heard they are hard on the trails in AK which we really want to walk. Should we invest in some sort of backpack thingy for her to sit is and DH to wear Or just stick with the stroller...and do they even make those for 2 yr olds?