Family trip 3 day-2-nights to Hong Kong (6 Adult)

Hi, there are two ways for you:
1. You can take Airport Express Train to HK Station, where you can find the free shuttle buses that are provided by your hotel.
2. Airport shuttle bus E11 or A11 can be used. By either of them, you need to get off at Admiralty Station, Queensway. Then walk to the boarding location of your hotel free shuttle buses to catch that.

By taking your hotel free shuttle bus, you can get to the hotel directly. For the bus schedule and boarding site, you can consult your hotel. To hire coach for two days, you can also turn to your hotel.

As for the itinerary, here is my suggestion:
D1: As you are arriving in the afternoon, you can go for shopping at Times Square near Causeway Bay after your unpacking. Suppose you are not tired, Lan Kwai Fong deserves a visit at night.
D2: Sky 100 is recommended you at first. It is near Kowloon MTR Station. Then the Avenue of Stars and Ladies' Street can be visitied. If you are interested in, China Harbor Shopping Malls are worth going as well. At night, you can enjoy the Symphony of Lights at Victoria Bay.
D3: You can go for visit to the peak in the morning. If there is time left, you can buy or taste some local snacks anfd food at Causeway Bay. Then go prepare your leaving.