Pardon me for looking ahead, but we are planning our trip to Myrtle Beach next July. Our group we consist of 2 couples ( one in 30's, one in 40's) and our sons (13 & 18). Would Myrtle Beach or North Myrtle Beach be better for us. We like shopping, eating, go-karts, mini-golf, and the 13 year old likes amusement parks. Thank you.