An anchor comprising: a supporting framework; and a liner, the supporting framework being: a rigid structure formed from a set of feet, which rest, in use, on the ground or a support surface, a set of struts cross-bracing the feet, a set of interconnected, tubular metal uprights defining the vertical edges of the supporting framework, a set of cross-braces interconnecting a first set of the uprights and cross-members (48, 50) at right angles to the cross-braces interconnecting a second set of uprights, that together define a generally cuboidal hollow interior portion of the supporting framework; and the supporting framework being collapsible, when not in use, to fit within the liner, the liner having an open-topped, generally cuboidal form and being shaped and dimensioned to fit inside the assembled supporting framework and being: receivable within the supporting framework; and comprising connectors disposed on, or about, an upper peripheral edge thereof, which connectors are adapted, in use, to connect an upper part of the liner to an upper part of the assembled supporting framework, such that the liner is suspended within the supporting framework by its connectors with its lower surface resting on the struts cross-bracing the feet; wherein the anchor further comprising a fence post; and the supporting framework further comprises one or more connectors (60, 62) for connecting the supporting framework to the fence post. a rigid structure formed from a set of feet, which rest, in use, on the ground or a support surface, a set of struts cross-bracing the feet, a set of interconnected, tubular metal uprights defining the vertical edges of the supporting framework, a set of cross-braces interconnecting a first set of the uprights and cross-members (48, 50) at right angles to the cross-braces interconnecting a second set of uprights, that together define a generally cuboidal hollow interior portion of the supporting framework; and the supporting framework being collapsible, when not in use, to fit within the liner, the liner having an open-topped, generally cuboidal form and being shaped and dimensioned to fit inside the assembled supporting framework and being: receivable within the supporting framework; and comprising connectors disposed on, or about, an upper peripheral edge thereof, which connectors are adapted, in use, to connect an upper part of the liner to an upper part of the assembled supporting framework, such that the liner is suspended within the supporting framework by its connectors with its lower surface resting on the struts cross-bracing the feet; wherein the anchor further comprising a fence post; and the supporting framework further comprises one or more connectors (60, 62) for connecting the supporting framework to the fence post. receivable within the supporting framework; and comprising connectors disposed on, or about, an upper peripheral edge thereof, which connectors are adapted, in use, to connect an upper part of the liner to an upper part of the assembled supporting framework, such that the liner is suspended within the supporting framework by its connectors with its lower surface resting on the struts cross-bracing the feet; wherein the anchor further comprising a fence post; and the supporting framework further comprises one or more connectors (60, 62) for connecting the supporting framework to the fence post.