How long does it take to sail from Dover to London?

Sailing from Dover to London typically takes about 5 to 7 hours, depending on the type of vessel, weather conditions, and tidal currents. The distance is approximately 70 nautical miles up the River Thames. Commercial ferries may have set schedules, while private yachts could take longer or shorter based on their speed. It's essential to check local conditions and regulations before setting out.