We're cruising in August and are going to waterproof our existing trainers/tennis shoes. We do have walking boots but they're heavier in weight and I'm thinking of our luggage allowance. We're also bringing waterproof over-trousers as well as waterproof jackets as we're going on a bear viewing trip and it's a long time to be stood there getting wet if it rains.
What I'd like to know is will it be warm enough to wander round the Wonder in open sandals/flip flops? I don't mean out on the open deck but the interior of the ship. I'm going to be packing them anyway as we're off to California straight after the cruise but I didn't know whether I'd need to pack a pair of covered shoes as well.