Kings Dominion, officially opened in 1975 with 15 rides, is a 400 acre theme park near Richmond, Virginia featuring numerous roller coasters, thrill rides, water rides, Nickelodeon-themed rides and activities for all ages. Open from April-November. There are so many fun things to do at Virginia's premier themed amusement park! With so many things to see, you'll need more than one day to enjoy it all!. 22 Kings Dominion coupons, including 5 Kings Dominion coupon codes & 17 deals for December 2017. Make use of Kings Dominion promo codes & sales in 2017 to get extra savings on top of the great offers already on kingsdominion.com.