I've stayed here twice, both times in August (of different years), both times in Loop 1 which is the quiet loop (no pets, no radios or other noise, 24 hours a day). There are a few walk-in sites (site 16 isn't a very far walk), but most are drive-in. Most sites have hammock-able trees and are quite shady. Pit toilets are available in loop 1, otherwise you can walk to the other loop to have running water. 

Note that check-in is at Ottawa Lake - I arrived too late for check-in to be open this year (not sure if it ever was due to the pandemic), but had no issues just going to the site I'd reserved online.