Step 1.
- Fill a highball glass with ice.
Step 2.
- Add 2 ounces of white rum.
Step 3.
- Squeeze half a lime and add the juice to the rum.
Step 4.
- Pour in 1 ounce of simple syrup.
Step 5.
- Top with 3 ounces of soda water.
Step 6.
- Gently stir to combine the ingredients.
Step 7.
- Garnish with a lime wheel and a sprig of mint.