| |  | | (2)__Log rafts, carrying not more than 2 persons and used |  | on ponds or lakes or internal waters of less than 50 |  | acres in area, are exempt from carrying personal |  | flotation devices. | 
 | 
 
 
 |  | | C. The following penalties apply to violations of this |  | subsection. | 
 | 
 
 
 |  | | (1)__A person who violates this subsection commits a |  | civil violation for which a fine of not less than $100 |  | nor more than $500 may be adjudged. | 
 | 
 
 
 |  | | (2)__A person who violates this subsection after having |  | been adjudicated as having committed 3 or more civil |  | violations under this Part within the previous 5-year |  | period commits a Class E crime. | 
 | 
 
 
 |  | |  | 5.__Operating watercraft to endanger.__A person may not |  | operate any of the following so as to endanger any person or |  | property: | 
 | 
 
 
 
 
 
 
 |  | | C. Surfboard or similar device. | 
 | 
 
 
 |  | | A person who violates this subsection commits a Class E crime. | 
 | 
 
 
 |  | |  | 6.__Reckless operation of watercraft.__A person may not |  | operate any of the following in such a way as to recklessly |  | create a substantial risk of serious bodily injury to another |  | person: | 
 | 
 
 
 
 
 
 
 |  | | C. Surfboard or similar device. | 
 | 
 
 
 |  | | A person who violates this subsection commits a Class D crime. | 
 | 
 
 
 |  | |  | 7.__Operating watercraft at greater than reasonable and |  | prudent speed.__A person: | 
 | 
 
 
 |  | | A.__May not operate a watercraft except at a reasonable and |  | prudent speed for existing conditions; and | 
 | 
 
 
 |  | | B.__Shall regulate the speed of a watercraft so as to avoid |  | danger, injury or unnecessary inconvenience in any manner to | 
 | 
 
 |