The whole fam damily is taking a cruise next month and we leave out of Charleston. We've never been to charleston before so we are heading in ONE day early. Will probably have anywhere from right after breakfast until 11-12pm the next day to sight see and explore.

What are some must see things that the 4 of us can do together ? Wife and I are secretly more excited to spend a day in charleston than we are to go on the cruise, but we won't tell the boys that. They've never been on a cruise before.

If it helps we are staying at the Hilton waterfront/downtown.