The London Showboat Dinner Cruise on the Thames River. Enjoy a memorable evening of food, wine and entertainment on this 3-hour showboat dinner cruise on the Thames River in London. Feast on a delicious, 4-course dinner on your comfortable sightseeing boat as you sail by top London attractions such as Big Ben, the London Eye and Tower Bridge, all illuminated in the gathering darkness. While you eat and admire the sights, enjoy live entertainment from a cabaret singer, and, if you wish, take to the disco dancefloor. The TripAdvisor London showboat reviews consistently give it four or five stars! Book and Save 25% Off The London Showboat Dinner Cruise on the Thames River.