1. Reversing Falls in Saint John is a unique natural phenomenon where the tides of the Bay of Fundy cause the Saint John River to reverse its flow. This creates a series of rapids and whirlpools that are a sight to behold. The rushing waters create a spectacular display that changes direction every 12.5 hours as the tides come in and out. Visitors can witness this amazing natural spectacle from various viewpoints along the river.

2. The Reversing Falls are a natural attraction and can be visited at any time. There are no specific working hours, as the phenomenon occurs due to the tidal movements. However, if you wish to visit any nearby attractions or facilities, their opening hours will vary.

3. There is no admission fee to see the Reversing Falls, as it is a natural occurrence. Transportation options to the site include driving, taking a taxi, or using public transportation. There are also boat tours available that take visitors closer to the rapids for a more up-close experience. For any specific inquiries or details, it is recommended to contact the Saint John tourism office or check their official website.