2 Ocean Park Disney Orchard Plaza (see the nightlife in Hong Kong) Times Square in Causeway Bay. You can go to a tea restaurant and feel the culture of Hong Kong. There are still many places. It is estimated that you don't have enough time with the group. )
Causeway Bay and so on. Wan Chai and Mong Kok are more civilian.
Four brands of eastern and western medicines (generally expensive in mainland China and about 20% cheaper in Hong Kong)
Pay attention to sun protection and courtesy (Hong Kong attaches great importance to these)