I was there a little over a week while much of the water hikes to the north were closed. Tonto Narrows wasn't affected by the closures and the water level is great, maybe only a foot below the high mark on the rocks. Still many swimmers and diving spots. If you have the time, I'd recommend wading/swimming/boulder hoping up the creek to the upper narrows about 2.5 miles up. There is a trail on the rim, but it's not as scenic or adventurous.