One of a few Gay Pride celebrations that take place in the Southeast during the month of September (others include North Carolina Gay Pride in Durham and Pride in the Park in Roanoke, VA), South Carolina Gay Pride takes place in the capital city of Columbia, in Finlay Park - the date for this year has yet to be confirmed but will likely take place the last weekend in October 2013.
Pride in South Carolina comprises a pair of major events as well as a handful of smaller ones. Details about SC Gay Pride 2013 will be posted here as the dates approach - here's a look back at last year's event:
The major draws are the Annual Pride Parade, which takes place at noon on Saturday - it starts and ends at Finlay Park, proceeding down Main Street, west along Gervais, and then north back up Park Street to the Finlay Park Pride Festival grounds.
The parade is followed immediately by Pride Celebration in Finlay Park, which runs from 1 pm until 6 pm and features a slew of cool entertainers this year. Also note that this event has an official hotel sponsor, the gay-friendly Columbia Marriott Downtown Columbia (803-771-7000 - ask for the "SC Pride Group Rate"), which along with a few other properties around town is offering special rates during Pride.
Additionally, numerous bars as well as gay-popular restaurants, hotels, and shops have special events and parties throughout Pride Weekend. Check the main GLBT newspaper serving the Carolinas, Q Notes for details. Also take a look at the online visitors guide produced by the city's official tourism organization, the Columbia Metropolitan CVB - it's a useful mainstream source of information on the region.