I do not have a visual impairment, but my daughter does. I was talking to her TVI about liking to hike as a family. However, I am concerned about her tripping over tree roots and rocks. She said that there are white cane attachments that is a hook at the bottom to help with hiking and outdoor use.
This doesn't help if the trail is not clearly marked but may be useful. I was trying to find where to buy one, but I got stuck. I will ask her TVI if you're interested. Here is a link describing it:
$1