Been itching to pass through the ever-locked iron gates of Old Towne Creek, the future Charleston County park site right next door to Charles Towne Landing? Here’s your chance. Join naturalists and historical specialists to roam the 67-acre property that was long home to the Ravenel family. Ages nine and up are welcome, and advance registration is required. Old Towne Creek Park, 1400 Old Towne Rd. Saturday, 1-4 p.m. $15; $12 Charleston County resident. (843) 795-4386, www.ccprc.com