Multi day hikes, 15km per day

Good day all hikers,

We are a group of ladies that only recently started hiking. We are looking at doing a trial at least once a year.

Can you suggest any multi day (slack pack) hikes (not longer than 5/6 days), where the maximum is about 15km per day? We are from Bloemfontein, but are willing to travel.

Your help will be greatly appreciated.