Cesjacks - Mt Jagunjal - Tarn Bluff & return in a day?

Hi Everyone,
How insane/easy/doable would it be to start from Cesjacks, summit Jagunjal, head down to Tarn Bluff and make it back to Cesjacks in day (even a bit after night fall)?
We would be camping at Cesjacks the night before and would only be travelling with day packs. We are both reasonable fit (i.e. capable of hiking with 20kg packs for ~25km over challenging terrain) and have done plenty of hiking before (although not around that area).
Appreciate your help and advice!
Thanks
How insane/easy/doable would it be to start from Cesjacks, summit Jagunjal, head down to Tarn Bluff and make it back to Cesjacks in day (even a bit after night fall)?
We would be camping at Cesjacks the night before and would only be travelling with day packs. We are both reasonable fit (i.e. capable of hiking with 20kg packs for ~25km over challenging terrain) and have done plenty of hiking before (although not around that area).
Appreciate your help and advice!
Thanks