Do know the Florida Keys Personal Watercraft Regulations. We had a blast, just play by the rules. (1) You cannot ride a PWC at night, from 12 hour after sunset to 12 hour before sunrise. (2) Fancy maneuvering and excessive weaving through congested boat traffic and other risky moves near another vessel can be ruled as reckless operation (a first-degree misdemeanor). (3) The operator must attach the engine cutoff lanyard to hisher body. (4) Inflatable PFDs are prohibited for personal watercraft use. (5) You have to be 18 to rent a personal watercraft in Monroe County. (6) Everyone riding on a personal watercraft must wear an approved Type I-IV personal flotation device (PFD). (7) Drivers born after 1987 have to pass a NASBLA approved boating education course. (8) The driver must be at least 14 in Monroe County.