To see trails, click on the icon in the toolbar that looks like a map pin with a route.
You can then browse trails, and get a closer look at any that interest you.
How to use trails:
Click Start trail to see the records that make up the trail. If you are on mobile you may be asked for location permissions, so that you can see where you are in relation to the trail.
You can then click Next or Prev to cycle through them.