# Public beach > Public beach means the part of the shoreline owned by a state or under state-held public trust, from low to high tide marks **Term:** Public beach **Last updated:** 2026-07-29 ## Definition ## What Public beach Means in a Contract A public beach, in contractual language, denotes the strip of shoreline that sits between the mean low tide and mean high tide marks, which is generally not subject to private ownership. Instead, it is either owned outright by a governmental body or held under a public trust doctrine that preserves it for the benefit of the general public. When this term appears in a contract, it signals that the parties are acknowledging a boundary line beyond which private rights, such as exclusive use, construction, or fencing, do not extend. This distinction matters because coastal properties often abut land that looks contiguous but is legally split between private ownership and public trust land. A contract referencing a public beach is typically drawing a line, literally and figuratively, between what an owner, tenant, or developer can control and what remains open to public access regardless of adjacent property rights. Understanding this term also helps parties anticipate regulatory oversight, since public beaches are frequently subject to additional layers of governmental review, environmental protection rules, and public access mandates that do not apply to purely private land. ## How Public beach Is Defined or Measured The physical boundaries of a public beach are usually measured by reference to tidal markers, most commonly the mean high tide line and the mean low tide line. These lines shift over time due to erosion, accretion, and sea level changes, which means the legal boundary of a public beach is not always static. Surveys, tidal datum calculations, and sometimes court-recognized historical boundaries are used to pin down where private land ends and public trust land begins. Contracts dealing with coastal property will often incorporate definitions drawn from the law governing the contract, since public trust doctrines vary in scope and application depending on the jurisdiction. Some definitions extend public rights only to the wet sand area below the high tide mark, while others recognize broader public access rights across dry sand areas as well, depending on local custom or long-standing public use. - Tidal datum lines establishing the low and high water marks - Historical survey records showing shifts in shoreline over time - Statutory or common law definitions of public trust land - Local custom or long-standing public access precedent ## Where Public beach Appears in Agreements References to public beach land commonly appear in real estate purchase agreements, coastal leases, easement agreements, and development contracts. A property seller may need to disclose that a portion of the land adjoins or overlaps with public trust shoreline, affecting the buyer's usable footprint and development potential. Government contracts and concession agreements also use this term, particularly when a private business is granted a limited right to operate on or near a public beach, such as a beachfront restaurant, rental kiosk, or lifeguard service. In these cases, a