1 ice block
1 (32 fluid ounce) bottle cranberry juice
1 (750 milliliter) bottle champagne
1 (20 ounce) can pineapple juice
2 1/2 cups water
1 (6 ounce) can frozen lemonade concentrate
1 lemon, sliced
Place ice in a punch bowl; add cranberry juice, champagne, pineapple juice, water, lemonade concentrate and mix well. Garnish punch with lemon slices.