The oasis is situated on the site of a former coastal drainage project, where the land was reclaimed for agricultural use before being restored to its natural state.
The area contains a significant population of the endangered European pond turtle.
The reserve features 'leccio' (holm oak) forests that are among the last remnants of the ancient vegetation that once covered the Roman coast.
The site acts as a major ecological corridor connecting inland territories to the Mediterranean coastline.
Several species of rare Mediterranean orchids bloom within the meadows during the spring months.
The soil composition includes fossil-rich dunes that predate the modern coastline.
The reserve is an important hub for research on wetland bird migration patterns in central Italy.
Oasi di Macchiagrande is a 280-hectare protected wetland managed by WWF Italy located within the Roman Coast State Nature Reserve. The landscape comprises Mediterranean scrub, freshwater ponds, and historical dunes that buffer against the Tyrrhenian Sea. It serves as a critical nesting and migratory stopover for diverse bird species, including the grey heron and the marsh harrier. Visitors traverse a network of wooden boardwalks and nature trails designed to minimize human impact on the fragile ecosystem. The reserve sits on land that was once part of the historical Maccarese estate. Several observation hides are strategically positioned for silent wildlife watching. The flora features rare specimens of wild orchids and dense holm oak forests. The site is actively maintained to preserve the biodiversity of the Tiber river delta region.
The main wooden boardwalk crossing the freshwater pond area.
Bring high-quality binoculars for wildlife viewing in the observation hides.
Wear insect repellent during the warmer months, especially near stagnant water areas.
Stay strictly on the marked boardwalks to avoid damaging sensitive flora or disturbing ground-nesting birds.
Do not visit during heavy rainfall as the trails become muddy and some boardwalks may be slippery.
Generally open on weekends and holidays; closed on weekdays unless by prior appointment for educational groups.
Maintain silence to avoid scaring wildlife; dogs must be kept on a leash or are restricted in certain zones; do not pick plants or remove sand.
