We will be in Greenwich (precruise) and would like to take a river cruise on Thames in to London proper. We would like a leisurely cruise. I would appreciate any tips and recommendations of the various cruise operators.
River cruise companies offering a narrated trip to Greenwich are mentioned in this thread:
https://community.ricksteves.com/travel-forum/england/greenwich-ddaacba8-f832-4d94-ba60-728398cd955a