1. Cut pineapple crosswise into 1/2 inch-thick rings; arrange on a platter.
2. Peel mangoes. Slice fruit off pits and cut into 1/2-inch chunks; discard pits. Arrange mangoes over and around pineapple. Cut limes into wedges and place on platter.
3. Sprinkle ginger evenly over fruit. Squeeze lime juice from wedges over fruit to taste.