GoPro Settings in Drains
Exploration is an addiction.
As great as gopros are for an action camera they are horrendous in low light and no setting on it will change this.
I would be recommending an slr. Even entry level ones can be had cheaper than the current flagship gopro. They have a physically much larger sensor compared to a gopro meaning they are more sensitive to light and handle low light better (less noise/grain). If you need something smaller you could look at a Canon g9x or similar 1" sensor compact.
Hood Rich