"Both tribes will race out into a field to collect ten tribe colored barrels. Once all ten barrels are retrieved, they must be arranged on individual platforms. Then one person at a time from each tribe will toss sand bags at the barrels with the goal of landing a sand bag on top of each barrel. First tribe to get a sandbag on top of all ten of their barrels wins." ~ @SurvivorWiki
They use the Medallion and give it to the other tribe.
The advantage is that two of their barrels will be out of the field, already on a platform with a sandbag on top of each of them.
 |  |  |  |
 |  |  |  |
They also win a basket of fruits, spices, and an herb garden.
Proceed to tribe events.