North Myrtle Beach's rule and regulations for beach tents are as follows:
• From May 15-September 15, you may only bring round umbrellas with a center pole that is no more than 7 feet, 6 inches tall, and that provides circular shade no larger than 9 feet in diameter.
• No tents, sports-brellas, cabanas, pavilions, tarps, etc. are allowed on the beach between May 15-September 15.
• Baby tents that are no bigger than 31" X 31.5 " X 38" can be used throughout the year on the beach to shade those who are 18 months or younger.
Read more at http://www.northmyrtlebeachhotels.com/blog/article/beach-tent-rules-and-regulations-in-north-myrtle-beach#t57OC8jOWsB2VPFj.99