Cut the lime in half and run one piece along the edge of each glass or tumbler. Pour sea salt into a small dish and dip each glass or tumbler in. (this is totally optional)
Add Mint leaves to glass or tumbler.
Add 1/4 cup of La Croix Soda water.
Muddle the mint gently into a tumbler or glass.
Add the rest of the coconut soda water and enjoy!