I organised a Thames River Cruise with Dinner as part of the social programme for an International Research Conference in central London. We were blessed with fine weather that evening, so my guests from all over the world had a fascinating view of the river and the city from the boat's top deck. Even those of us who know London well enjoyed the different perspective on the city. The crew and caterers did a splendid job of looking after us and overall, the whole Cruise was a very enjoyable experience. Some photos of the evening here: https://www.hrilondon2019.org/gallery/river-thames-dinner-cruise/