Review for Thunder Valley Casino Resort Review For Thunder Valley Casino Resort Google User Jul 17 '18 at 18:22 If you're a senior, you need to visit Thunder Valley Casino Buffet. You have to join their club, go to the courtesy desk and show your card, you receive a 50% coupon for the buffet. The food was great and the staff was very courteous, attentive as well as prompt. This is definitely worth a trip to experience this all you can eat buffet! View full site to comment or like