This trail is officially 24km. However, you may notice that the app distance is a little less. The reason is the start of the trail is being renovated so it is temporarily shorter..just under 23km.
Evelvation gain on this trail is minimal. It is a flat walk and you will not notice any incline.
It depends if you are running it or walking! If you want to walk the trail you can expect to do it in 5-6 hours.