Bring three cups of water to a simmer. While the water is heating, pound the mint to break it up a bit. I use a mortar and pestle, but you can use a wooden spoon.
When the water is hot, stir in the fruits and the mint. Simmer for 3-5 minutes, remove from the heat, cover, and allow to sit for another 3 minutes. Strain the tea into a pot or container.