On weekend in winter, we used to go hiking with our dog. And in summer, we go to the beach like Sai Kung. After the beach, you could get a nice dinner in Sai kung.
After I have my baby girl, we don't do that anymore. We usaully stay home on weekend now.
You could take a 1 day tour to those island like Lama, Cheung chow...... that can be relaxing.