Abstract: A means (20) for protecting a device (2) which a installed on the sea bed (11) and projects up therefrom. The means comprises a central section (21) which is arranged to be attached to the upper section (9) of the device (2), and legs (22) which are linked to the central section (21) and arranged to extend away from it and slantingly down to the sea bed (11). The legs (22) can be pivoted into a position, wherein their longitudinal direction is substantially coincident.

Abstract: A subsea system comprises a central template that is piled into the seabed and carried wing modules that are connected to the template by hinges. This allows the template to be deployed and the wing modules attached subsequently or for the wing modules to be folded upwardly into a collapsed disposition as the template is deployed. In either case, the template can be deployed through the moonpool of a vessel and does not require a heavy lifting barge. An example of a module usable with the template is a hinge-over guidebase which can allow the commencement of drilling of a well while a manifold and christmas tree are being constructed for subsequent attachment. Thus, installation of the system is easy and drilling of the well can commence quickly.