A resting device (1) of at least one portion of a linear structure (2) is for crossing an uneven underwater topography. The resting device (1) is suitable for supporting at least one portion of the linear structure (2) that defines a longitudinal direction (X-X) coincident with or parallel to the longitudinal development direction of the linear structure (2). The resting device (1) includes at least one buoyant element (3) and at least one tether (4), suitable for constraining the resting device (1) to a bed (5). The at least one buoyant element (3) is suitable for providing a sufficient buoyancy to keep the at least one tether (4) under tension. A deck (6) has a shape and material that allows distributed resting of at least one portion of the linear structure (2) on the resting device (1).

A method of installing a plurality of pin piles into a seabed including at least the steps of: (a) lowering a pin pile apparatus comprising a first pin pile and an attached clump weight towards the seabed; (b) allowing the first pin pile to self-penetrate the seabed based on self-weight of the pin pile apparatus and the momentum from step (a) until the clump weight reaches the sea bed; (c) disconnecting the clump weight from the first pin pile; and (d) recovering the clump weight for use with a second pin pile and repeating steps (a)-(c). In this way, the pin piles are easily installed from their descent to the seabed with the clump weight, which can then be removed and applied to the next pin pile in an easy and repeatable operation without requiring a suction apparatus or hammer or drill.

Disclosed is conduit anchor, an offshore system comprising a conduit anchor and a method of deployment. The conduit anchor includes a base section adapted for attachment to a conduit, and a conduit guide extending from the base section. In use a dynamic conduit extends along a dynamic conduit pathway range defined by the anchor, via the conduit guide. The conduit guide comprises a convex bend protecting surface region oriented towards the dynamic conduit pathway range which in use protects against over bending of the dynamic conduit.