“Floating home marina” means an area where five or more floating home berths are rented, or held out for rent, to accommodate floating homes, but does not include a marina where 10 percent or fewer of the berths are leased or held out to lease to floating homes nor a marina or harbor (a) which is managed by a nonprofit organization, the property, assets, and profits of which may not inure to any individual or group of individuals, but only to another nonprofit organization; (b) the rules and regulations of which are set by majority vote of the berthholders thereof; and (c) which contains berths for fewer than 25 floating homes.