In a small saucepan combine the water, honey, and ginger.
Bring to a boil over medium high heat and stir until honey is dissolved into the water.
Remove from heat and cool 10 minutes.
After cooling stil the lemon juice into the honey and water mixture and mix well.
Fill 2 glasses with ice. Divide the lemon mixture between the two glasses.
Fill the remainder of the glasses with sparkling water and stir well.
Garnish with a lemon slice if desired.