A motion simulation apparatus that includes a motion platform and a carrier for carrying a user, the carrier being mounted on the motion platform , the motion simulation apparatus being characterised in that the motion simulation apparatus includes: a drive arm , the drive arm having a lower end that is pivotally mounted on a substrate to pivot relative to the substrate with two degrees of freedom of movement and an upper end that is pivotally connected to the motion platform to pivot with respect to the motion platform with two degrees of freedom of movement such that the drive arm can impart rotation to the motion platform ; and two guide arms , the drive arm and the guide arms being angled towards each other from the substrate to the motion platform such that longitudinal axes of the arms intersect at a virtual pivot point (P), with the motion platform interposed between the substrate and said virtual pivot point (P), the drive arm being forwardly positioned with respect to the guide arms , each guide arm having a lower end that is pivotally mounted on the substrate to pivot relative to the substrate with three degrees of freedom of movement and an upper end that is pivotally connected to the motion platform to pivot relative to the motion platform with three degrees of freedom of movement, the drive arm , the guide arms and the motion platform defining a dynamic frame that can pivot with respect to the substrate such that a resultant movement of the motion platform can be imparted to the carrier , and the drive arm and the guide arms constraining the range of movement of the motion platform to a curved surface in three-dimensional space, respective planes in which the ends of the arms are located being angularly offset with respect to each other such that pivoting of the dynamic frame causes the drive arm to impart rotation to the motion platform as the drive arm pivots to accommodate the angular offset of the respective planes. a drive arm , the drive arm having a lower end that is pivotally mounted on a substrate to pivot relative to the substrate with two degrees of freedom of movement and an upper end that is pivotally connected to the motion platform to pivot with respect to the motion platform with two degrees of freedom of movement such that the drive arm can impart rotation to the motion platform ; and two guide arms , the drive arm and the guide arms being angled towards each other from the substrate to the motion platform such that longitudinal axes of the arms intersect at a virtual pivot point (P), with the motion platform interposed between the substrate and said virtual pivot point (P), the drive arm being forwardly positioned with respect to the guide arms , each guide arm having a lower end that is pivotally mounted on the substrate to pivot relative to the substrate with three degrees of freedom of movement and an upper end that is pivotally connected to the motion platform to pivot relative to the motion platform with three degrees of freedom of movement, the drive arm , the guide arms and the motion platform defining a dynamic frame that can pivot with respect to the substrate such that a resultant movement of the motion platform can be imparted to the carrier , and the drive arm and the guide arms constraining the range of movement of the motion platform to a curved surface in three-dimensional space, respective planes in which the ends of the arms are located being angularly offset with respect to each other such that pivoting of the dynamic frame causes the drive arm to impart rotation to the motion platform as the drive arm pivots to accommodate the angular offset of the respective planes. <EOS>