Our project proposes a public health infrastructure, supported by the New Jersey Department of Health and the New Jersey Department of Environmental Protection, that utilizes salt from the Hudson River as both a therapeutic agent and an environmental diagnostic tool. Drawing inspiration from the floating islands of Lake Titicaca—where the Uros people weave totora reeds for buoyancy, privacy, and protection—we adopted the concept of decay and renewal as a central theme. Although the reeds naturally deteriorate, they continuously serve both human and ecological needs, embodying a cyclical process of regeneration. This concept parallels the transformation of our site, which has evolved from Indigenous land to an immigrant hub, and now functions as a transit corridor dominated by vehicular traffic. Once a vibrant transportation node, the area is now marked by abandonment and environmental degradation. Industrial development has led to soil and air pollution, contributing to some of the highest asthma rates in New Jersey. Yet amid this decline, nature has reclaimed space. Phragmites thrive where light and water flow through abandoned infrastructure, forming an “accidental wetland"—a hybrid landscape shaped by neglect and resilience. Our project seeks to build upon this phenomenon, transforming the site into a space of human and ecological renewal. The estuarine nature of the Hudson River offers a unique context for engaging salt as both a healing material and an environmental indicator. We propose a system that collects and distributes salt in liquid, solid, and airborne particle forms. This new system weaves through the existing structure, both below and above grade. The below-grade structure, composed of varying heights, harvests water with different salinity levels. The above-grade structure—constructed of terracotta—was selected for its porous properties and natural compatibility with salt crystallization. Arched forms above ground collect salt and shed water to the underground structure, regulating salinity below. By harnessing sunlight, river water, rainwater, wind, and changes in land elevation, the project enables passive salt crystallization. Terracotta arches are designed to channel wind while shaping spatial experiences. Areas with denser arch intersections become more enclosed, creating subtle gradients between indoor and outdoor environments. These arches form a three-dimensional scaffold for salt formation and environmental engagement. The site’s former train tracks are repurposed as channels that guide river water into the landscape. As these channels move inland, they connect with a system of salt basins with varying salinity levels. On the west side, where the land is less porous, rainwater is collected and directed through channels into salt collection pits. This dual system allows the site to operate as both a natural drainage landscape and a platform for salt harvesting. The arches are anchored into existing pipes within the train shed structure, drawing water upward into the terracotta framework. As salt is absorbed and dried on the surface, it is released into the air via wind funnels created by multiple arch formation. The overall structure is rotated to harness dominant wind energy from the northwest. Moreover, varying funnel diameters modulate wind speed, enabling passive halotherapy—a natural treatment that supports respiratory health, particularly for individuals with asthma. Salt is also introduced into therapeutic basins to provide skin-soothing salt baths. On an ecological level, the system establishes a controlled salinity gradient that fosters biodiversity, particularly for blue crabs. The porous, textured surfaces of the terracotta accelerate crystallization and create microhabitats for aquatic species. As a key species in monitoring water health, blue crabs serve as a low-tech indicator of the Hudson River’s ecological condition. This architecture serves not only New Jersey residents intentionally seeking treatment for respiratory and dermatological issues, but also passersby who can passively benefit from the salt-infused air. Through intentional environmental design, salt therapy becomes an ambient experience—naturally occurring, freely accessible, and integrated into daily movement through space. By integrating salt, wind, water, and terracotta, the project transforms a neglected post-industrial site into a regenerative landscape—promoting public health, ecological diversity, and material experimentation through architectural design.