For the Honey-Balsamic Glaze:
Place all the ingredients into a small saucepan and cook over medium heat, stirring occasionally.
Allow the mixture to reduce by half, remove from heat and cool.
Place watermelon, tomatoes, mint, and oil in a bowl and gently toss together.
Season with salt. Portion the salad onto four plates and top each with a crumbling of feta and a drizzle of glaze. Serve.