Having visited and camped at quite a few Australian national parks by now, Bladensburg N.P. was lacklustre in comparison. While I understand government funding is limited; and larger, more 'famous' parks may get the lion's share of funds, Bladensburg may prove worthwhile if more development was put in to develop better infrastructure.
For starters, the road leading into the park becomes unsealed several kilometres in - without any warning. We had a 4-wheel drive so it wasn't a problem, but as it was wet season, the track soon turned into muddy washouts in places, and there were large potholes to be avoided.
There was a self-drive tour map which we followed. Although it was helpful in locating where we were, ironically many of the descriptions began with "This creek/waterhole/etc is a popular swimming and picnic spot." In reality, the entire site would be deserted, and the water would look coffee-like and uninviting to say the least.
On the upside, we had the park all to ourselves and countless kangaroos and wallabies. I counted 2 other vehicles the whole time we were there (one was a service vehicle). If you are an avid roo-spotter, this is the place to come. The mammals were mostly hiding under trees and trying to stay out of the rain, allowing us good views from our car.
The only spot of any interest was Skull Hole, at which we spent the longest time (20 mins). There were mud swallow nests on the ceilings of caves here, although bats were now the new residents. There's a small freshwater creek and it makes for a more interesting spot than the majority of the park, which is mainly mesa scrub.
You are allowed to camp at Bladensburg in designated spots, and one could see that some work has been done to demarcate campsites in one area. But unfortunately the landscape, lack of truly interesting sites and under-deveoloped infrastructure all work against tourists being attracted to this park.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.