A good question.
A local answer.

Compare construction and total price at several established retailers rather than relying on a prominent tourist-area display.

Keep a shorter scenic option ready if weather or a venue's accessibility information does not match the day plan.

Choose an air-conditioned museum, aquarium or library with lifts and baby facilities, and check its current opening hours.

For three adults sharing one room, confirm two real beds and the full occupancy price before comparing central hotels.

Markets, casual counters and lunch specials can balance a more expensive dinner without making every meal a long search.

Choose a lookout or short cruise with comfortable seating if time on the water matters more than an active tour.

Set a comfortable daily drive limit before adding stops; a map's nonstop time excludes meals and beach visits.

Save screenshots of the exact quote and ask the supplier about deposits, tolls and any location fee before booking.

Check fire, heat and road alerts close to each driving day, and leave the final night near the departure point.

Keep one flexible harbour or coastal day so the plan can respond to energy, weather and discoveries made during the work week.

A city-focused visit can still be complete; leave a flexible half-day instead of buying every tour before arrival.

Check the rail timetable, track conditions and return time; leave room for a slower lunch and rest.