To arrange the tracks, we need cement mortar or concrete, which can be prepared from ready-made dry mixes, which are sold in construction stores, or made independently.
The entire stacking process is very reminiscent of our children's game "pasichka". To begin with, in the garden you need to mark the paths themselves and cut the turf (a layer of grass) with a shovel. Then lay a layer of plastic film (this is done so that the track does not sag and is more durable).
You can buy a track mold or make it yourself from bars or metal. You form a picture arbitrarily, to your taste.
After that, we fill the form with a solution, level it and lightly slap it so that there are no voids.
After a while (about 5 minutes), carefully take out the form and repeat the whole procedure from the very beginning.
When the entire path is full, you need to fill up the gaps between the "pasochki" sand with the addition of chalk and gypsum. We add chalk and gypsum in a proportion of 1:10 (possible by eye, the proportion is approximate). Instead of chalk, dry paint of absolutely any color can be used.
And finally, you need to sweep away the excess sand and thoroughly water the track with water. Then let it dry. Typically, the drying time is several days.
Good luck