Does anyone have any preference for a Riverboat company that basically starts at Tower Bridge Pier and then we'll get off down by the London Eye? IS it better to book online ahead or just go the the day of . We'll be visiting in August and its our first activity for the day.
This is one suggestion: https://www.londontoolkit.com/briefing/river_services.htm
An other option is to take a HOHO bus which includes this option. On https://www.londontoolkit.com//whattodo/london_hoho_bus_discuss.html you can see a description (Scroll down to "Free River Cruises")