Seek the free travel strategy of Hong Kong, pass through Shenzhen, and stay in Shenzhen at night.

From Shenzhen to Hong Kong, it usually passes through Luohu, Futian, Huanggang or Shenzhen Bay Port. Just get a valid endorsement of the Hong Kong and Macao Pass.

If it is a two-day visit, it will be very tiring to run back to Shenzhen every day. If possible, I would suggest you find a cheaper hotel in Yau Ma Tei/Mong Kok. If it is a good hotel, 1 can find a good one, 1000 or so.

Hong kong tourist routes

Wan Chai Convention and Exhibition Center (Golden Bauhinia Square, Reunification Monument) > Central (Taiping Mountain, Wax Museum) > Tsim Sha Tsui (Avenue of Stars)

Besides, you can buy tickets online in advance, take a cruise and watch the scenery on the second shore of Victoria Harbour.

If you are interested, Ocean Park or Disney can also consider it. Of course, it's not for you to invite the elderly to ride the roller coaster, but there will be some performances and marine life (in Ocean Park, Disney doesn't). If the old people can't move easily, then you should work harder and push the wheelchair. Wheelchairs are rented in both places in the park.

If you are shopping, I suggest you go to Harbour City in Tsim Sha Tsui, where there are more brands and more concentrated brands, reducing the chances of going to multiple shopping malls/shopping centers. There are shopping malls such as DFS, Tsim Sha Tsui sogou, K- 1 1 near the offshore port city.

Food will be more difficult. Some famous places are small shops. You said that the old people can't move easily, so I suggest you look for food in the nearby shopping mall.

It's convenient to rent a car. You can look at it online. There are local car rentals in Hong Kong and Shenzhen/Hong Kong car rentals. Of course, Shenzhen/Hong Kong is definitely more expensive, and it is a bit troublesome for Hong Kong locals to pick up their cars after they want Hong Kong. If you really can't walk at all, I personally suggest that you don't need to rent a car. Take a taxi if you encounter a place with inconvenient transportation. Driving has several disadvantages. The driving direction in Hong Kong is different, and the driving habits in Hong Kong are different from those in the Mainland. You are not familiar with the roads in Hong Kong, so parking in Hong Kong may be a problem.