This is one of the best known walks in Australia, and certainly the one with the most infrastructure. The track has many kilometres of boardwalk and duckboards and there are huts, composting toilets and timber camping platforms at every recommended camping area. Not surprising really - up to 60 people per day leave Cradle Mountain (limited by a booking system) - and without the track hardening and huts the environmental impact would be severe.
I did the walk in peak season and was lucky enough to have no rain for the entire journey. In practice, the number of people on the track was in no way oppressive, and staying in the huts with about ten other people was actually pretty enjoyable. I'd rate it as a pretty easy walk, at least in summer and with good weather. The distances are short and the navigation is easy. When I did it, there was a family consisting of three generations on the track. I'd guess the kids were about eight years old or so.
For more information and details on booking a place on the track, see the official Overland Track website
At the southern end of the Overland Track there are a few extra walks that can be done without having to buy an Overland Track Pass. From Pine Valley you can do the Acropolis and Labyrinth walks, along with the final section of the Overland Track itself from Narcissus Bay to the Lake St Clair Visitors' Centre.
The first day has the steepest climb of the entire walk, but at the top you're rewarded with fantastic views like this.
Pine Valley to Acropolis Ridge side trip 🔗
From Pine Valley there are a couple of day walks off to the north: The Labyrinth and The Acropolis. In April 2022 I did the first section of the Acropolis walk up to the ridge just south of the Acropolis itself, as part of a three day trip from Narcissus Bay. The ridge affords spectacular views of the surrounding terrain. This trip is particularly worth doing in autumn for the deciduous Nothofagus foliage.
Narcissus Bay to Lake St Clair Visitor Centre 🔗
Instead of taking the ferry from Narcissus Bay, you can walk the track to the Lake St Clair Visitor Centre. Allow an entire day for that, or split it into two short days and camp at Echo Point. The track is slightly undulating with no significant hills, although there are parts where you need to clamber over exposed tree roots.