[12] Ocean breezes tend to moderate the island climate, as compared to the nearby mainland were daytime highs are higher and nighttime lows are lower.

In 1666, British subject Lt. Col. Robert Sanford arrived on Seabrook as an explorer in royal service to King Charles II.

By 1684, the local Stono Indians were persuaded to cede their lands to the proprietary government, which in turn sold the property to English settlers.

During the American Revolutionary years, the island was used as a staging area for Hessian and British troops during the Siege of Charleston.

At the height of the Civil War, Seabrook sold the island to William Gregg, who rented the land to Charles Andell.

The group's clubhouse at the mouth of the Edisto River, directly across from Rockville, was completed in 1918 on plans of architect David Hyer.

[12] In 1939, the Episcopal Diocese of South Carolina rented land on Seabrook to establish a summer camp for underprivileged children.

Seventeen years later, the town of Seabrook was incorporated, and it celebrated a decade of private ownership and self-government in 1997.

[14] The switch to mandatory membership has been controversial with some owners contending that the requirement has depressed real estate sales and prices.

[citation needed] In 2010 the Horizon Plan, a complete reconstruction of island amenities, was completed, providing property owners and guests with a new fitness/community center, racquet club, full-service clubhouse, beach club and renovated equestrian center, pools and golf practice facility.

Seabrook Island amenities include two championship golf courses, nationally recognized racquet club with 15 Har Tru tennis courts and two pickleball courts, equestrian center offering trail and beach rides, ocean-front dining venues, swimming pools, fitness center and expansive banquet/private dining venues.