Taxis in Venice come in two forms—water taxis and land taxis—and both operate 24 hours a day, though with specific conditions. Water taxis (motoscafi) are available throughout the night but are significantly more expensive than the daytime public Vaporetto service. Between 10:00 PM and 7:00 AM, a mandatory night surcharge of approximately €15 to €20 is added to the base fare. Because the public water buses (Vaporetto) switch to a limited "Night" (N) line after midnight, water taxis become the primary way to reach specific hotels or the airport in the early hours. On the "land" side, standard car taxis operate 24/7 from Piazzale Roma and Mestre to serve the airport and mainland destinations. It is a peer-to-peer pro-tip to pre-book your night water taxi through a reputable consortium to ensure a fixed price, as wandering the canals at 3:00 AM looking for an unreserved boat can be both difficult and costly.