The invention describes a device that enables people with special needs (SEN), namely with mobility impairment of the lower limbs, to access the sea from the beach, without assistance from another person. According to the present invention, independent access is achieved by using a portable, rail-type mechanism which can be assembled easily on the beach. The rail operates as a stable track for a carriage to be drawn along. The starting point of the track is at a distance from the shoreline, in a place with wheelchair access. The end of the track is in the water at an appropriate point where the water's depth is sufficient for the disabled user to swim without problems.