Trampoline assembly with an enclosure assembly, the trampoline assembly including a base frame (14, 314), the enclosure assembly comprising: a plurality of support arches (32, 332) including at least four support arches (32A, 32B, 32C, 32D, 332) that are hingably secured to the base frame, wherein each support arch (32A, 32B, 32C, 32D, 332) overlaps two of the other support arches (32A, 32B, 32C, 32D, 332), wherein the plurality of support arches (32A, 32B, 32C, 32D, 332) cooperate to extend substantially fully around a perimeter of the base frame (14, 314), the plurality of support arches (32A, 32B, 32C, 32D, 332) being selectively movable between an upright configuration and a collapsed configuration, wherein a first one of the support arches (32A, 332) is selectively secured to an outer edge of its two respectively adjacent support arches (32B, 32D, 332), and a further one of the support arches (32D, 332) arranged adjacent to the first one of the support arches (32A, 332) is selectively secured to an inner edge of the first one of the support arches (32A, 332) and to an inner edge of its other respectively adjacent support arch (32C, 332), and the others of the plurality of the support arches (32B, 32C, 332) are secured to an outer edge of one of the respectively adjacent support arch and to an inner edge of the other respectively adjacent support arch, such that when the further support arch (32D, 332) is in the upright configuration, all of the other support arches arranged between the first one of the support arches and the further support arch are inhibited from being moved from the upright configuration to the collapsed configuration, and when the first one of the support arches (32A, 332) is in the collapsed configuration, all of the other support arches are inhibited from being moved from the collapsed configuration to the upright configuration. a plurality of support arches (32, 332) including at least four support arches (32A, 32B, 32C, 32D, 332) that are hingably secured to the base frame, wherein each support arch (32A, 32B, 32C, 32D, 332) overlaps two of the other support arches (32A, 32B, 32C, 32D, 332), wherein the plurality of support arches (32A, 32B, 32C, 32D, 332) cooperate to extend substantially fully around a perimeter of the base frame (14, 314), the plurality of support arches (32A, 32B, 32C, 32D, 332) being selectively movable between an upright configuration and a collapsed configuration, wherein a first one of the support arches (32A, 332) is selectively secured to an outer edge of its two respectively adjacent support arches (32B, 32D, 332), and a further one of the support arches (32D, 332) arranged adjacent to the first one of the support arches (32A, 332) is selectively secured to an inner edge of the first one of the support arches (32A, 332) and to an inner edge of its other respectively adjacent support arch (32C, 332), and the others of the plurality of the support arches (32B, 32C, 332) are secured to an outer edge of one of the respectively adjacent support arch and to an inner edge of the other respectively adjacent support arch, such that when the further support arch (32D, 332) is in the upright configuration, all of the other support arches arranged between the first one of the support arches and the further support arch are inhibited from being moved from the upright configuration to the collapsed configuration, and when the first one of the support arches (32A, 332) is in the collapsed configuration, all of the other support arches are inhibited from being moved from the collapsed configuration to the upright configuration.