Hi Ridwone,
The total distance between Running Creek outpost from Marina Bay is aroung 30 Kms. Due to dirt road it takes around 2 hours to reach from one camp to other. You can check details from this link: https://earth.google.com/earth/d/1mLTWbpoWI-PFwiP3kmakgjUMWjeGQKHI?usp=sharing
Lower camp is around 8 Kms from the Port Stewart ranger’s office.
All the outposts are accessible trough unsealed road during the dry season.
Yes mother and daughter live in the running Creek outpost.
There are other rangers who visits based on the requirements but only mother and daughter permanently stays at Running creek.
Hope this helps.
Kind regards,
Evelyn