Preheat your grill to medium-high heat, about 450 degrees.

Slice the watermelon and pineapple and place on the grill. Grill for 5 minutes, then flip and grill for another 4-5 minutes or until fruit is charred. Remove from grill and set aside to cool.

Meanwhile, stir together in a small bowl the honey, vanilla extract, and lime juice.

Once cooled, chop all grilled fruit into small pieces and place in a large bowl along with the fresh blueberries and sliced strawberries. Add the honey mixture and toss to combine.

Add the mint leaves and toss again. Serve!