Hong Kong International Airport: For Tsim Sha Tsui, Jordan, Yau Ma Tei or Mong Kok, take Cityflyer A21 rather than paying for the Airport Express and then backtracking: it runs down Nathan Road, takes roughly 60–90 minutes depending on traffic, and costs about HK$33. If you are staying around West Kowloon or have luggage and value speed, Airport Express to Kowloon Station takes about 20 minutes and costs about HK$105 with Octopus/contactless payment; you will still need a taxi, MTR or walk onward to most Kowloon hotels.
Hong Kong West Kowloon Station: This is the high-speed-rail terminus for mainland-China arrivals. It is beside Austin MTR station and a short covered walk from Kowloon MTR; use the Tuen Ma line from Austin for East Kowloon/Kowloon City, or a taxi for luggage-heavy hotel transfers. Immigration and station formalities mean that a nominally short rail journey is not a short door-to-door arrival.
Hung Hom Station: Useful for East Rail and Tuen Ma line arrivals, especially from the New Territories. Use the MTR rather than a taxi to reach Tsim Sha Tsui, Mong Kok or Kowloon Tong; the station is a rail interchange, not a sightseeing district, and its waterfront location can make the final hotel leg less obvious than it looks on a map.
Ocean Terminal, Tsim Sha Tsui: The conveniently located cruise terminal: walk through Harbour City to Tsim Sha Tsui or take a short taxi. Do not book an expensive port transfer; the waterfront, Star Ferry and MTR are close.
Kai Tak Cruise Terminal: Treat this as an awkward port, not a city-centre arrival. Use the cruise-day shuttle if provided to connect to public transport, or take a taxi to your hotel/MTR; the terminal itself is notably isolated and has limited useful services.