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is a natural beach in Cala Fredosa, under the Cap de Creus lighthouse, seven kilometers from the town center. It is the last of the beaches of the so-called Mar d'Avall, which is the entire coastline located south of Cap de Creus in the direction of Cadaqués. Oriented to the east-southeast, it has a length of 12 m and a width of 13 m. formed by gravel and pebbles. There are usually many remains of small dry trunks that have been carried by the water. Nudism is practiced there. This beach is where the inhabitants of the Cap de Creus lighthouse embarked, and from where supplies were sent to them, before the asphalt road existed. From the beach a cobbled path that zigzags, climbs to the lighthouse on the south side of the promontory that supports it, overcoming the 87 m difference in altitude.
, a Neolithic settlement, reveals a glimpse into ancient urbanism and cabins. The site, spanning 800 m², showcases well-preserved remnants of sub-rectangular houses forming a 'U' shape, an isolated oval cabin, and traces of communal life. The oval cabin, measuring 10 x 7 m, likely served as a communal hub for cooking and essential activities. Archaeological phases, from the early to late Neolithic, reveal evolving structures and cultural artifacts. Nearby, the Serra de Rodes and Cap de Creus boast a concentration of dolmens, illuminating the region's megalithic heritage. Ca N'Isach offers a remarkable window into Neolithic life, with a rich history spanning millennia.