Fort Sumter and Fort Moultrie National Historical Park

$3 for adults.

We were there last week and his grave is to the right of the entrance to the Fort

Walking around the outside of the fort is free. If you want to go inside it, it is $7 per adult.

You can't go inside right now but the other day they was walking them around the Fort. There's a lot out side to see...

They are normally open 7 days a week till 4pm

I believe it's $7 per adult and no parking fee.

Call to verify, but it should covet

Was 7 each when I visited last month

Depends. Sullivan's Island has an ordinance on dogs on the beach, see link http://www.sullivansisland-sc.com/faqs.aspx

For drones, I interpret this as a "no". https://www.nps.gov/articles/unmanned-aircraft-in-the-national-parks.htm As for metal detecting, it is illegal to use metal detectors and/or remove anything from a national park. https://www.nps.gov/fosm/learn/management/metal-detecting.htm

Yes

Yes