Passageway including a section that is extendable and retractable, the section including a frame, slide track assemblies, and scissor bar assembly. The frame has upright members. The slide track assemblies are disposed proximately to respective upright members. Each of the slide track assemblies includes a slide track and slide block. The slide track has a cavity and channel. The slide block is configured to ascend, descend, and rotate within the cavity. The slide block includes a guide block that extends from the slide block at least partially through the channel. The scissor bar assembly is secured to the upright members and slide track assemblies such that the upright members are enabled to extend and retract with respect to each other along at least one arcuate path, wherein the guide block limits rotation of the slide block within the slide track to rotation of the guide block within the channel.