Marine escape systems incorporating a chute and with a non-inflatable platform

A marine escape system for evacuating a marine structure comprises a chute 11, a buoyant non-inflatable platform 12 and at least one inflatable life raft 13. These parts are deployable from a packed disposition on the structure to a disposition in which the chute 11 leads from the structure to the platform floating on the water and the platform leads to the inflated life raft so providing a passage for people from the structure to the life raft. The platform further comprises inner and outer parts (18 and 19, Fig 3) that may be relatively rotatable to allow, on deployment, the life raft to swing relative to the chute.