A trampoline and enclosure system including: a flexible mat; a plurality of resiliently flexible spring rods each having a lower end retained by a frame of the trampoline and an upper end coupled to the mat about a periphery of the mat; characterised by: a barrier of a flexible material surrounding the mat above the mat and having a lower peripheral part coupled directly or indirectly to the mat; and a plurality of generally upright enclosure support members outside of the barrier relative to the mat which are retained at or towards their lower ends by the frame of the trampoline and below the mat and which support the barrier above the mat; wherein the enclosure support members are resiliently flexible, and the barrier or a flexible connecting element connects together the enclosure support members at or towards an upper peripheral edge part of the barrier and at or towards the upper ends of the enclosure members to draw the enclosure support members away from their natural rest state and towards the centre of the mat, so that the enclosure support members are free to deform away from the mat when impacted by a user against at least one of the enclosure support members and/or against said barrier of flexible material, with the user impacting against said at least one of the enclosure support members and/or against said barrier of flexible material on any side of the enclosure system causing all of the enclosure support members to deform to some extent. a flexible mat; a plurality of resiliently flexible spring rods each having a lower end retained by a frame of the trampoline and an upper end coupled to the mat about a periphery of the mat; characterised by: a barrier of a flexible material surrounding the mat above the mat and having a lower peripheral part coupled directly or indirectly to the mat; and a plurality of generally upright enclosure support members outside of the barrier relative to the mat which are retained at or towards their lower ends by the frame of the trampoline and below the mat and which support the barrier above the mat; wherein the enclosure support members are resiliently flexible, and the barrier or a flexible connecting element connects together the enclosure support members at or towards an upper peripheral edge part of the barrier and at or towards the upper ends of the enclosure members to draw the enclosure support members away from their natural rest state and towards the centre of the mat, so that the enclosure support members are free to deform away from the mat when impacted by a user against at least one of the enclosure support members and/or against said barrier of flexible material, with the user impacting against said at least one of the enclosure support members and/or against said barrier of flexible material on any side of the enclosure system causing all of the enclosure support members to deform to some extent. a barrier of a flexible material surrounding the mat above the mat and having a lower peripheral part coupled directly or indirectly to the mat; and a plurality of generally upright enclosure support members outside of the barrier relative to the mat which are retained at or towards their lower ends by the frame of the trampoline and below the mat and which support the barrier above the mat; wherein the enclosure support members are resiliently flexible, and the barrier or a flexible connecting element connects together the enclosure support members at or towards an upper peripheral edge part of the barrier and at or towards the upper ends of the enclosure members to draw the enclosure support members away from their natural rest state and towards the centre of the mat, so that the enclosure support members are free to deform away from the mat when impacted by a user against at least one of the enclosure support members and/or against said barrier of flexible material, with the user impacting against said at least one of the enclosure support members and/or against said barrier of flexible material on any side of the enclosure system causing all of the enclosure support members to deform to some extent.