Did this cruise a few years ago, also in July. Found much easier and substantially cheaper to take a (shared if necessary) taxi, they follow the same route as the official excursions for half the price! The only trip I would pre-book is if you are going to Flam and want to take the train. Thoroughly enjoyable. Long queues for train tickets if travelling independently. When we travelled weather generally good, but did cool down towards the end. Suggest jacket or fleece in case! Maureen.
Thank you so much for your advice and comments. Greatly appreciated!Glenda.