I'd say go for it. Near the C area there is a great spot to lake swim even for young kids. The rocks very gradually enter the water and then it turns to sand. My 2 year old was weary but it still was a safe area with the right adult supervision. We went for a company luncheon so it was BUSY and bigger kids were all over so what I loved about this area is that further to the left is the nice gradual spot, and over to right about 50 feet was a little jump rock for those kids that knew how to swim well. (The rock was about 3 feet out of water, and the water was about 5ft deep or so. All the bigger kids from around 7-12 were really having fun at that spot while the adults could still be with the young kids while also seeing the older ones. Covered gazebos, stairs, would not be an easy spot for wheelchairs but would still be possible. I would recommend 2 people to help maneuver a wheelchair if it was necessary. This is just by the C area where I was. My knowledge on the rest of the park is pretty much zilch. :) Happy swimming or tanning!