We've camped all over...all over Glacier and all over the country, and this is hands-down one of our favorite campgrounds. 100% our fave national park campground! An authentic unplugged, quiet camping experience.
The remote location is amazing, and the campsites are nicely spread out in a moody, dark forested area with near full shade. There are a couple of paths directly to the lake, literally a 2-3 minute walk from anywhere in camp. Sites have fire rings and picnic tables, and there are a few vault toilets and several trash bins and potable water spigots. No showers or sinks. Deer galore! The visitor tent is pretty cool, especially for families with kids. It has activities and games like scavenger hunts, books/tools for identifying wildflowers/plants/scat etc. And there's a camp host onsite seasonally, also.
Note that all sites are FCFS. Rangers at the entrance usually have a fair idea of whether you'll get a spot.
Even though the park has gotten much busier in the past few years, Bowman still remains a quietER gem. The long road keeps people away, I guess - although some 2023-24 construction/improvements has made it quite a bit better.