Any suggestions for visiting the Adirondacks?

We took the toll road up Whiteface Mountain, temp was much cooler up top :-) but worth it for the breathtaking view. Lake Placid was a nice little town worth a stop. We stayed at the KOA, it was fine, not buggy but it was October. We've been to Lake George several times, loved the shopping in town, the only downside was the traffic getting from the campground into town. Enjoy your trip!

As already stated, stay at the North Pole Resort. There is a KOA down the road but is in the woods, gets dusty and the dust hang in the air on busy weekends. Lots to do and see, a beautiful place, the Adirondacks are.
Good luck.

Route 28 through Old Forge, Inlet, Blue Mountan, Racquet Lakes and on up to Saranac and Placid, Then go down the Northway to Lake George. I hope I got that right. It has been 20 years. Awesome area but watch out for the black flies

http://www.northpoleresorts.com/100-acre-woods/ - - north of lake Placid - very large sites and full hook ups


White Water
http://www.adkadventures.com/

http://rafting.allaboutrivers.com/New_York_river_rafting/New_York_white_water-stNY.html

Update! I forgot about the bugs.
In my early days, I did lots of trout fishing throughout the Adirondacks, and the bugs, .... oh the bugs!!! Make sure you get the best insect repellent possible, as the bugs can be a nightmare. If you are not afraid to use DEET, use it. We used Deep Woods Off for years until I developed my own organic insect repellent. If possible keep all areas covered with long sleeves, long pants, hats, etc. The bugs were so bad that the "no see ums" used to bite our eyelashes, but then again, we were deep into the forests.
When traveling up the mountains, take warm clothes with you, as the temperatures at the peaks can be substantially colder then the base.
Keep a sense of humor, smile, and have fun.

We have been frequent visitors to the Adirondack area for many years. Glens Falls is the beginning of the Adirondack Park, and the birthplace of Rachel Ray. Lake George is bustling with tourists beginning in May, but a nice place to start your adventures. There are many RV resorts here, but reserve early as it can fill up quickly, especially on the weekends. There is plenty to do and see here, including boat rides, great dining, the battlefield, and the scenery. Travel up Prospect Mountain for spectacular views of the surrounding area. If you're into the ponies, stop in Saratoga, for the races. Once you enter the Northway, the roads are a little more challenging, and exit services are not as frequent as points south. Keep an eye on your gas gauge here. Make your way up through Wilmington, stopping in the scenic view areas to see the wonder of the Ausable River, as it winds it's way through the wilderness. Take a tour of High Falls Gorge, on Route 86. There are a number of campgrounds along 86, and our favorite for years has been North Pole Campground. Stop in at "The Hungry Trout" for an excellent, yet somewhat pricey dinner. Take a car trip up Mount Marcy and view the wilderness up close. Be aware this is considered a dense wilderness area, and should only be attempted by the most seasoned hikers. STAY ON the Paths, and leave the dogs in the RV. It is easy to get turned around in the woods, and lose your way. Be prepared. The area is populated by large black bears, porcupines, coyotes, fox, deer, skunks, otters, ermine, beaver, muskrats, and even moose. Visit Saranac Lake, and try a treat from the bakery. Take a day trip up to Lake Placid, and enjoy the quaint shops of this bustling tourist area. Plenty of shops, restaurants, and activities for all tastes. Move on up to Keesville, just south of Plattsburg, and visit Ausable Chasm. Breathtaking views and a nice walking tour are found here. You can get the ferry from Port Kent to Burlington, Vermont just a short distance from Keesville. Travel up through Plattsburgh, and you can move up to Canada. Make sure you have the proper documentation, and know the rules for border crossing here, including what you can and cannot bring over the border. On your way back down, travel slightly west, and visit the "Lakes", Tupper Lake, Raquette Lake, Indian lake, Long Lake, and the Fulton Chain. The scenery is amazing. Safe Travels and enjoy your trip.
http://iloveny.com/cities-and-towns/region/adirondacks

As stated, black fly season will be in full season. If you can come later in the summer you will enjoy your visit much more. As a local NYer, I will not go to the ADKS until end of June at least. If you need full hookups, you will need a private campground. NONE of the NYS or DEC parks in the ADK region have any hookups-not even electric. Beautiful place to go but know what you are doing.

Adirondack museum was a great stop for us. Lake Placid is nice You are also pretty close to Lake Champlain. You can take a ferry across the lake to Vermont for a day trip. Tour the Teddy bear Co. Lots of hiking trails. Lots of private campgrounds. KOA in Lake Placid. Pricy as all KOA's, North Pole campground Belive they have full hookups. If you trout fish lots of places to go. Have fun enjoy the trip

The most severe white water would probably be rafting the Hudson river. Can't recommend any outfitter though.
I don't believe any State campground has full hookups. Our favorite private cg is North Pole Resorts (100 Acre Woods side) in Wilmington, 8 miles from Lake Placid. Right down the street is the toll road to Whiteface Mt, or ride the chair lift up.
For hiking there are numerous trails in the region, from flat hikes to the High Peaks (over 4,000 ft.) The town of Keene on Rt 73 south of Lake Placid is where the die hard backpackers hang out. The easiest High Peak to access would be Cascade Mt south of Lake Placid.
Leaving in May? Black fly season will be in full swing. Nasty little critters, I use 30% DEET and hope my liver survives. I figure they're done at the beginning of July.
For a first trip to the area I'll suggest the Adirondack Museum in Blue Mountain Lake to get a sense of the local history. Second would be the Wild Center in Tupper Lake. Of course there are the Olympic venues in Lake Placid.

We came down from Canada into the Northern Adirondacks and stayed at Cranberry Lake SP. Not sure how other SPs are, but this one was fairly tight for a smaller 5th wheel. No electricity at this SP and from what I understand many are the same. It was pretty and there were nice hiking trails around the park.

From there we went SE to Lake George. Stayed at Ledgeview Village RV Park and really liked it. It's well shaded and quiet even though it's not far from the hectic village of Lake George. It has FHUs. From Ledgeview we visited Fort Ticonderoga and also Saratoga for some horse racing. Saratoga has some rich history and the downtown area was very nice too.

http://www.ledgeview.com/