Bahía Desvelos is a coastal bay on the central-northern coast of Santa Cruz province in Argentina, located approximately 70 kilometers south of Puerto Deseado and 150 kilometers northeast of Puerto San Julián. The bay is geographically defined by the Islote del Cabo to the north and Cabo Guardián to the south. The shoreline within the bay is composed of modern, coarse alluvial sediments, forming extensive beaches of rounded stones, known as rodados. In the southern extreme, near Cabo Guardián, the coast transitions to rocky headlands with numerous rock formations, reefs, and cliffs. This southern area features ignimbritic rock outcrops and a significant number of islets and exposed rocks that become accessible at low tide, such as Isla Rasa Chica. The broader coastline in this region is characterized by a series of capes, points, and promontories of volcanic rock, with coastal ridges of gravels of varying heights. The bay is situated immediately north of the larger Bahía Laura. For paddlers, this indicates a rugged, exposed coastline with a mix of cobble beaches and rocky headlands. The tidal range is significant enough to expose islets and reefs at low water, which must be factored into route planning and timing. The area is remote, with no facilities, amenities, or specific launch points, suggesting a self-sufficient expedition requiring careful logistics. The presence of an unmanned lighthouse on Cabo Guardián, operational since 1928, is a notable landmark. The overall character is one of a wild, geologically dramatic Patagonian coastline with limited human presence.