If Dawg and Irreg are coming, I think that makes 5 of us plus the captain. There are a couple more folks thinking about coming along.
Things to do for the surface crew:
by the way, I don't know how much of this your 2 year old would enjoy doing. I will let you and the wife the the judge of that. Unless you are swiming, diving, boating or hiking it is pretty dead out there this time of year.
Duke Power's World of Energy
http://www.duke-energy.com/safety/education/visitor_centers/woe/
This might be a good close indoor option of of something to do. Never been there so don't know how old you need to be to enjoy it
Devil's Fork State Park at lake Jocassee Play Ground area and gift shop
http://www.southcarolinaparks.com/park-finder/state-park/1355.aspx
Keowee Park and Natural area walking trails
http://www.southcarolinaparks.com/park-finder/state-park/972.aspx
Oconee County Visitor info
http://www.oconeesc.com/econdev/family.htm.
If she spends the day at Devil's Fork State Park, just before you get to the park, you will pass the Jocassee Outdoor Center. It is a gas station, dive tank fill station, gift shop, out gear sales and rental and cafe all in one happy bundle. They have great pizza and burgers and an 8 foot table to sit down and eat at.
http://www.jocasseeoutdoorcenter.com/
The dive site is about and hour and fifteen minutes from Greenville or about forty-five from Easley. It is a remote area so mostly it is parks, hiking trails and water out that way. We might be able to work out some kind of car pool if she wants to stay in Greenville and shop.
In the summer when it is warm, we usually set up a canopy with chair and so forth for our bubble watchers and bring along stuff for the kids to feed the fish.
We will probably be on the lake a good 4 hours by the time you figure everyones dive time for two dives and a surface interval along with water travel and launching the boat.
Hope this info helps