On the hour Gold Panning: There is a large yard for this and more, including a rock and sculpture garden. Everyone is guaranteed to get real gold. Gem Panning: A good fun family activity. Discover a variety of gems. Emeralds, sapphires, rubies, garnets, calcite, petrified wood, and about 20 others. Bring them home and turn them into heirlooms. Cost: $22.00 per person.