this is a very interesting loop. I would rate it on the high end of moderate versus hard. I started the loop going up the steepest portion first and came down the less steep and longer side.

while it is a consistently uphill slope, the trail is solid and winds it's way in and out of forested areas with excellent views of Lake Routiti. the last section is very steep.

you can rest at the shelter at the top before heading down again. the track down has some deep ruts and is mostly in the open without shade. The trail ends at the lower car park, not the upper car park, so you may have another 10 minutes of walking on the gravel road if you parked at the upper car park.