Blend the strawberries with the cold water until smooth.
Add the watermelon, tequila, lime juice, and sugar. Blend until combined.
Pour into a pitcher and chill while you prepare the rim.
Pour the hot honey onto one plate, and mix the sea salt and finely chopped basil on another.
Rim each glass (mason jars work well) by dipping first in the hot honey, then in the basil-salt mixture.
Fill glasses with pebble ice, pour in the margarita, and garnish with a strawberry and a watermelon wedge. Enjoy!