I recall reading someone's comments that Charleston, SC is quite RV friendly and even has a parking garage that accommodates RV's. EDIT: Found it, read the italic below.
If you are retired military or DAV or DOD employee, etc. Joint Base Charlestown on the west side of the international airport has a RV campground.
Dolphin Cove Marina on the Ashley River just north of downtown says they are completing an RV park to be finished "early 2017" you might give them a call and find out the status of it.
http://www.dolphincovemarina.net/You can always get a Uber taxi into the old town area and then walk and use the trolley from there.
This Thread recommended the James Island campground and the KOA at Mt. Pleasant.
I'm going to quote bits and pieces from an RV specific forum I am a member of.............................. (don't want to get in trouble for not giving credit, but at the same time, it may just be better to disseminate the information.)
Parking in Charleston is easier than you think. On Mary St. just before the Visitors Center is a parking garage with a lot of RV spots inside. Yes, inside the whole first floor is RV parking. Last time I was there it was $10 for 24 hours and you can park overnight. It is a fairly long walk downtown, but easy biking (flat) or a few dollar cab ride. Once downtown, everything is walk-able on the peninsula.
Visitor Center Parking Garage on Google Maps.
Another option I have used several times is on Ashley Ave. near Moultrie Park - by the pond there is usually lots of empty spots and it is free. It is about 4 blocks from where Market terminates and an easy walk.
We have found several spots just by touring around. Can you park next to the market? Probably not. But we have parked on Battery and metered parking over by where the tours for Ft. Sumter depart,
Bottom line - we have never had a problem in Charleston as long as you are willing to walk a few blocks or ride a bike.
I don't know where you are staying, but James Island County park is a great park and a very short drive to downtown. Book ahead.*****
I used this parking garage and it worked great (stayed overnight at James Island Co Park). Part of what I wanted to do in Charleston was walk around and see the city and old homes by foot, anyways. There was plenty of parking available there and maneuvering was just fine.*****
the visitor center does have parking for RVs. Then there is a trolley bus that can get you around the city pretty much anyplace you want to go. The tourist plantations are outside the city and have lots of parking.Hopes this helps. I haven't been and would like to go, and participating in a discussion like this helps me go back and locate material that will help me on a trip. (possibly I should set up folders or word files and store it that way.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.