Here are some Charleston carriage tour coupons. This coupon is good for a $4 discount before 10 a.m. or a $2 discount after 10 a.m. at Palmetto Carriage Tours. It also says you can use it for free parking instead of on the carriage tour. This coupon will get you a $2 per person discount at Carolina Polo & Carriage Company. This coupon will get you a $2 per person discount on an adult one-hour residential tour at Old South Carriage Tours.