Wash all the fruits thoroughly.
Cut the fruits into bite-sized pieces.
In a large mixing bowl, combine the pineapple chunks and mandarin oranges.
Add the sliced strawberries and halved grapes.
Gently fold in the mini marshmallows and shredded coconut.
In a separate bowl, whip the cream until it forms soft peaks.
Carefully incorporate the whipped cream into the fruit mixture.
Mix in the chopped nuts if using.
Taste and adjust sweetness if desired.
Cover and refrigerate for at least 1 hour before serving.