Fill each glass with a bit of crushed ice, then add the fruit in rainbow colors. I like using the ROY G BIV guidelines! Once the fruit is in the glasses, add a bit more ice and fill each glass with about 4 ounces of coconut water.
Top each off with some flavored seltzer (I love Polar vanilla or La Croix coconut or passionfruit!) and serve. Garnish with extra fresh mint.