1) The State Capitol: the capitol building offers both free guided and self-guided tours around the historical site. This would be a good spot for your group to learn a bit more about Columbia's history.
2) Congaree National Park: this is a free park that is one of the oldest and tallest forests east of the Mississippi River. It is a bit outside of Columbia, but could be a great place for a picnic and reflection, or just an opportunity to get away from downtown Columbia.
3) Blue Marlin: this restaurant is regarded as one of the best seafood restaurants in all of Columbia. It is the first ocean-to-plate sustainable restaurant in the area; their seafood is served fresh after being cooked in the style of Cajun, Creole, and low country cuisines.
South Carolina State Museum: this museum strives to create exhibits that reflect the essence and diversity of South Carolina; their exhibits change often in order to provide continuous education, entertainment, and inspiration. There is a $9 general admission fee in order to access all four floors of the gallery.
Emergency Kits: Site Leaders and participants can investigate the components of emergency kits, focusing on what might go in them and the expenses of maintenance and creation. This will help with understanding how people of low socioeconomic status might have difficulties when Natural Disasters strike.