A good question.
A local answer.

Compare the current route to the specific beach or town, not simply the train terminus; an onward bus may be needed.

Check travel time from the actual accommodation and current surf or weather advice before setting out.

Check the sanctuary's admission and closing time before choosing a slower scenic route.

Start with a river and city-centre day, then choose a separate neighbourhood or nature outing for a different experience.

Include the extra transfer time in the departure plan; the cheapest lot is less useful if it creates a tight check-in.

Confirm the terminal named on the current cruise documents; Brisbane has used different port facilities over time.

Filter for a room that actually sleeps four in suitable beds and check the full price after parking or transport.

Check drive times, pram access and opening hours before making a beach or island outing the centre of a short stay.

Keep one flexible day so weather or a slower arrival does not break the whole plan.

Choose the route by shade, weather and the time available rather than trying to cover every nearby suburb.

If the pass cannot meet the flight, compare a prebooked car, taxi or overnight airport stay without treating the pass as a reason to take a risky route.

Compare the first and last useful city connection with a direct ride, including luggage storage.