It's expensive - US$16 per person (under 2s are free). If you want to guarantee a private ride for two, it'll cost $64 for the pair of you. Queues mount up so it's best to book ahead (the same day is fine) at the Emporio di Gondola in the internal part of the canal.
If you don't want to share, try and make sure you arrive at the gondolas with lots of groups. If you're ahead of them, and the people behind you are all in groups, they'll probably let you go ahead on your own.
- Families with teenagers
- Families with younger children
- First-time travellers
- Great views / scenery