Ha Long is a sprawling coastal city, which makes it challenging to navigate on foot. Travelers will find that some key areas, like Bai Chay, have walkable sections with restaurants and shops, but the city layout overall is not compact. For daily errands or exploring, sidewalks are not consistently available, and many attractions require boats to access due to their location on islands in Ha Long Bay. This means that walking is not the most convenient way to get around, necessitating the use of taxis or motorbikes for longer distances.

Public transit in Ha Long is somewhat limited, although local buses and taxis provide basic connectivity. The city is served by buses to other major hubs like Hanoi, and ride-hailing options add some convenience. However, coverage within Ha Long isn't comprehensive, particularly for reaching tourist sites on islands. Transit infrastructure like the Bai Chay Bus Station aids connectivity, but for most travelers, these options might not offer the ease and flexibility needed for routine travel around the city.

Biking in Ha Long is feasible but comes with limitations. The city offers wide roads and lower congestion compared to other Vietnamese cities, making some routes bike-friendly. Cat Ba Island provides scenic biking opportunities for the adventurous. Yet, the lack of dedicated bike lanes and localized traffic challenges mean bicycling may not be ideal everywhere. Travelers are encouraged to be cautious and might consider renting a motorbike for added convenience and flexibility in navigating the area.