I visited in late June. The weather was great. There was lots of cool wildlife to see, especially birds. I really enjoyed hearing the loons. In the morning around 3:30 - 4:00 the woods came alive with all the birds calling out. I really wasn’t expecting that, which was a great wake up call to catch the sunrise before going back to sleep for a few hours.
The bugs were pretty rough and I felt a little unprepared for that. I brought DEET but even still a dozen or so mosquitoes would swarm into my tent any time i went in or out. In particular, it was difficult to use the vault toilets without getting repeatedly bitten as the mosquito activity was especially heavy around those. Thankfully, they don’t bother you on the water but they were very annoying on land in the evenings, especially.
I paddled and camped on Clark lake, portaged to Crooked Lake spent a night and then portaged to High Lake and spent a night. I’m a pretty novice kayaker and found the pace very doable and it was worth it to get to see more of the area.
I definitely plan on returning, hopefully in the fall when the mosquitoes are gone.