London Cannon Street is a straightforward, compact terminus station, making it relatively easy to navigate for first-time visitors. The station features seven platforms, numbered 1 through 7, which are arranged in a single row side-by-side. As a terminus station, all tracks end here, meaning you do not need to worry about through-trains or complex platform levels; once you arrive at the main concourse, you are already at the end of the line.
Think of the station as a simple "fan" layout: the platforms sit parallel to each other, and the concourse area runs across the top of them, providing direct access to every platform. Because the station is quite small, walking times between the most distant platforms—such as from Platform 1 to Platform 7—are very short, typically taking no more than 2 to 3 minutes, even with luggage.
These platforms are primarily used for City of London commuter services operated by Southeastern, connecting the City to southeast London and Kent. You will find that the departure boards are prominently displayed on the main concourse, clearly indicating which platform your train is departing from. Since all platforms are on the same level as the main entrance and concourse, you will not need to use elevators or escalators to reach your train from the street level.
If you are transferring to the London Underground, note that the Tube station is located beneath the main line station. You can access the District and Circle lines via stairs, escalators, or lifts from the main concourse. A common point of confusion for first-timers is the station’s dual-level nature: while the National Rail platforms are all on one level, the Underground station is separate and sits below. Ensure you follow signs for the "Underground" specifically if you are looking to continue your journey on the Tube.
Overall, the station's layout is highly functional and avoids the "maze" feel of larger London terminals. Just keep your eyes on the main departure screens on the concourse, and you will find your platform with ease. If you have any trouble, station staff are readily available on the concourse during operating hours to assist you.