1. Put the cedar plank board in the ziplock bag. Fill it with water. Let it soak for a few hours or overnight.
2. Add the shrimp to a bowl. Mix it with seafood mix and olive oil. Set aside for 10 minutes.
3. Prepare the grill.
4. Line the shrimp on the cedar plank board.
5. Keep it in the grill. Let it cook for about 20 minutes.
6. Squeeze some lime over it, just 5 minutes before removal.