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located in the bay of Montjoi, at Cape Norfeu, an integral reserve within the Cap de Creus Natural Park. It is located east of Cala Calitjàs, 15 km from the town of Roses. Surrounded by pine and eucalyptus forests, it is 90 m long and 13 m wide with coarse sand. The entrance to the sea has a fairly steep slope. It is reached by car along the road that starts at Cala Montjoi and leads to Cala Jóncols, which is why it is quite busy. Since 2009 it has enjoyed the European environmental certificate EMAS.
, 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.