Preheat grill to 400 degrees. Coat snapper with olive oil inside and out. Stuff half of the carrots and celery into the body of the fish, and set aside.
Mix the jerk sauce and BBQ sauce together once it's blended brush it onto the stuffed fish.
Make sure both sides are generously coated lay fish onto the cedar plank. Place fresh sliced garlic, ginger and the remaining carrots and celery on top of the fish, and drizzle with olive oil.
Place the plank with the fish on the grill and cook for 25 to 30 minutes and serve.
