Any public access route or routes and any easement along the bank of a public waterway, river, or stream provided by the subdivider shall be expressly designated on the tentative or final map, and this map shall expressly designate the governmental entity to which the route or routes are dedicated and its acceptance of the dedication.
Source:
Section 66478.6, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=66478.6..