City Cruises sailing past the P840 on the Thames, London, United Kingdom

city cruises sightseeing tour thames river journey p840 encounter dutch patrol vessel close encounter optional informative commentary city cruises unique perspective riverside vantage point historical landmarks potential route london eye potential route photography opportunities dutch naval power thames traffic nautical expertise city cruises captain public transportation relaxing cruise familyfriendly activity cultural exchange potential commentary springtime cruise london skyline unforgettable experience tower bridge p840