Combine the coconut water, mint leaves, ginger, honey, salt, and lime juice (if using) in a blender. Blend till fully combined and the mint leaves are mixed throughout. Taste and adjust for sweetness, adding more ginger or mint if desired.
Pour into a popsicle mold and insert popsicle sticks. Or pour into ice cube trays without any sticks if making ice cubes. Freeze for up to 12 hours or overnight.
To serve, push and squeeze the bottom of the silicone mold while pulling on the popsicle stick. They are easier to remove after a minute or two at room temperature.
Notes
Add different types of fruit juice to the mix for different flavors.
Electrolyte ice cubes - Simply make the mix exactly the same, but instead of pouring into a popsicle trays with sticks, just pour the mix into the sphere ice cube trays or square ice cube trays. Add them to ginger ale, sparkling water or coconut water for a fun flavored ice cube.
Mint leaves, even if small, tend to settle towards the top during the freezing process. If you'd like them to be mixed throughout, you can freeze the popsicles in layers, but this adds a lot of extra time. You could also muddle the mint into the mixture instead of blending.
If following HYH, do not use the lime juice unless re-introducing.