4 years ago I went to Sydney on business & mum came along for the ride as she always did when she could. We did the usual sightseeing in Sydney & then when I had to go to work mum amused herself. I made her check in with me each lunchtime & one day she called me to tell me that she had walked the whole of the park near the famous bridge & done a long tour of the Opera House all in one morning. The next day she had taken the bus to Bondi Beach to meet a friends daughter who lived in Sydney & then walked miles on her own along the cliffside from Bondi Beach, she never wanted to rest!