In case anyone is thinking about doing this walk, I have spent the last 3 days trying to get permission to access the private property, the number mentioned by the last person to tick this hike is not answering, the Rathdowney police station is not answering neither is the fire brigade. I have made numerous calls to different NP offices and also Barney Lodge, all without much success. Today I finally got an answer from a ranger and I will paste it here, unfortunately, the track shown on my GPS isn’t accessible from here.
Thank you for your enquiry regarding access to Mount Ernest.
Mount Ernest can only be accessed legally through national park land by parking at the gravel pit along Mount Lindsay Highway and walking in through the gate. The private landholders around this area do not allow the public to access their land.
Mount Ernest does not have any tracks or trails through the area, you will need a map, GPS and compass if you are going to walk in the area. It also got severally impacted by the wildfires at the end of 2019 and there are multiple land slips in the area.