We went on our gondola ride in March and it happened to be pretty cold on the night we went. Well, our guide had a blanket for us (how thoughtful!) so we kept warm the whole time! Super sweet! We went underneath a few bridges and while we were under one of them I wrote a note to my husband with chalk that our guide provided, very cute... and he offered to take a picture of us during the ride which was nice.
We brought our own champagne and our guide had the glasses and cheese/crackers for us, there was also music playing which made the atmosphere even better. It seemed like he thought of everything. Our guide was very friendly and he answered all of our questions. We also saw a lot of wildlife even though it was pretty dark out. We'd do this again in a heartbeat! It would be perfect for someone wanting to propose to their significant other... I imagine a lot of people have probably done this in the past.