First time visiting this section of Mount Barney NP, decided to have a shot at combining a couple of tracks to make a long and (mostly) circuit walk.
Went up and over Mount May from the camping ground, along the ridge on the rough dirt road and down to Yamahra Creek... the Upper Portals are a nice little spot, would be a good place for a swim in Summer if you can brave the heat of the exposed ridge on the way in. Left the portals and ascended a high ridge to the east, with spectacular views of Barney... was a nice little surprise, since everyone raves about Montserrat lookout instead. Returned via road - all day, only saw one other walker. Back at the camping ground, spoke to some girls who were wandering around trying to find the start to the Mt May walk... almost 3pm by this time, and sounded like none of them had much walking experience.
Suggested they try some graded tracks at Main Range first, they were surprised to learn it would take a few hours to do the May walk and that there wasn't any signage.
Was a long, tiring walk, lots of dirt roads and steep/crumbly ground, but plenty of great views along the way.