A good question.
A local answer.

Keep the final night close enough to the airport for an easy departure rather than adding a distant round trip.

Check the current Southern Highlands Line timetable in both directions, especially the last comfortable return.

Compare apartment kitchens with hotel facilities across the full two weeks, including cleaning and cancellation terms.

Check luggage storage and airport transfer timing for Monday so your departure day remains usable.

Map each exact address to the train or bus stop you would use daily; the suburb name alone hides different travel times.

Check current trail closures, transport links and Scenic World booking times before fixing the order.

Choose by scenery and logistics: the eastern route links beaches, while a Manly-area walk can pair harbour and bushland sections.

Start with a venue that confirms step-free entry, accessible toilets and nearby drop-off, then let the guest choose the activity.

Set aside time for the viewpoints and a beach break; the walk is more rewarding when it is not timed to the minute.

Call before visiting if you need a particular dish or weekend seating, as opening hours and booking policies vary.

Go in daylight on an open official path, let someone know your route and check current closures and weather before leaving.

An evening ride can be lovely for city lights, but confirm that your intended dinner venue and return transport will be open.