Pour water, salt, and vanilla into a sauce pan. Turn to high heat and bring to a boil.
Chop two of the peaches into bite size pieces.
Once your water is boiling, add chopped peaches and oats. Stir to combine.
Reduce heat to low and simmer for about 6-7 minutes, stirring occasionally. You can cook until the oatmeal is the consistency you like it at. Cook longer for a thicker oatmeal, and shorter for oatmeal with more liquid. Remove from heat.
Stir yogurt into the oatmeal, or you can serve it on top in individual bowls. Slice remaining two peaches and add on top. Enjoy!