What is Catwalk ?
Catwalk is (noun) 1. a long raised area down which models walk to show off clothes The model on the catwalk gave a twirl of her skirt. Fashion editors stared at the models on the catwalk. 2. an open metal structure for people to walk on, built along the outside of a ship or tall building He stepped confidently onto the catwalk.
source: Easier English, Student Dictionary Upper Intermediate Level