I'm sure your 2 days will fill and pass quickly. But if you like the out of doors and natural phenomena, it may be worth the hour and a bit
drive to the state park on Edisto Island. It was really something spend some contemplative time at the dunes and the sawgrass marshes, osprey overhead, sunrise on the surf (we were camped there). Check out their list of 5 top things to do because #3 addresses mobility concerns.