Lomas de Ancón is one of the few places near Lima where the 'Lomas' ecosystem reaches its peak biodiversity during the winter mist season.
The reserve protects archaeological remnants of pre-Inca cultures, including shell middens and ancient lithic sites.
The local vegetation is entirely dependent on 'neblina' or fog, which provides the necessary humidity for plant growth in an otherwise arid zone.
The site acts as a critical biological corridor connecting the coastal desert with the foothills of the Andes.
The area is home to the 'Flor de Amancaes', an iconic coastal flower that blooms only briefly during the high-humidity season.
ACR Lomas de Ancón is a Regional Conservation Area protecting 10,962 hectares of coastal desert hills and unique lomas ecosystems. The terrain features shifting sand dunes and rocky outcrops that support endemic flora, including the rare Amancaes flower. It serves as a natural barrier against urban sprawl in northern Lima and preserves habitat for species like the Peruvian fox and various migratory birds. The area relies on seasonal fog condensation for moisture, which triggers the growth of vegetation during winter months. It is a designated site for recreational activities such as hiking, sandboarding, and ecological observation. The landscape transitions from arid desert floor to greenery-covered hills depending on the specific microclimate and altitude. Geologically, the area showcases typical coastal formations of the central Peruvian desert.
The highest ridges of the Lomas offer panoramic views of the coastal dunes meeting the Pacific Ocean.
Bring at least two liters of water, as there are no facilities or shade within the reserve boundaries.
Wear high-traction hiking boots to navigate loose sand and slippery, rocky inclines safely.
Apply high-SPF sunscreen and carry eye protection to mitigate the effects of glare and wind-blown sand.
Do not attempt to hike deep into the dunes without a GPS or local guide, as the landscape features can look identical.
The area is most active during the winter mist season; the site remains open year-round, but plant life is dormant during the summer months.
Carry out all trash to minimize impact on the fragile desert ecosystem; stay on marked trails to protect sensitive vegetation.
