Dissolve the gelatin in the boiling water and stir into the watermelon puree.
Pour the mixture into a 9 x 13 casserole dish and chill overnight or until very firm.
Lightly toast cup of coconut and set aside to cool.
Add layer of whipped cream to serving dishes.
Cut chilled gelatin/puree mixture into small squares and place in serving dishes over layer of whipped cream.
Top with coconut.
Add dollop of whipped topping and sprinkle with toasted coconut.
Serve immediately.
*To make the watermelon puree, remove seeds from fresh watermelon and cut into large chunks. Place in a blender and process until smooth and well pureed.