Walsa is one of Pernambuco's deeper artificial tug wrecks, upright and well preserved on a profile that is unmistakably aimed at deep or technical-minded divers rather than casual sightseeing. Public references consistently frame it as a serious offshore wreck where the top of the structure already sits beyond common beginner limits and the seabed drops well below standard recreational comfort zones. That depth is matched by strong marine-life interest around the hull, with repeated public notes about schooling fish, nurse sharks, rays, and turtles visiting the wreck. The appeal is therefore a deliberately deep wreck dive: a clean industrial tug silhouette offshore, significant depth commitment, and the feeling of being on a purpose-sunk structure that now functions as a living aggregation point in Pernambuco's wreck circuit.