Marismas del Burro Narural Reserve
Located in the northern section of the Paraje Natural Marismas del Odiel, this 597-hectare nature reserve is made up of marshland and creeks.
You can't enter the marismas. But you can view them from the N441 Gibraleón-Huelva road. Coming from Gibraleón, the reserve starts a few kilometres south of the junction with the N431.
Flora and fauna
This reserve has a varied vegetation, including tamarisk and rosemary. The best time to see it is during migration, since it is busy with flocks of waterfowl.
The Centro de Visitantes Calatilla has an exhibition about the marismas and information about footpaths and guided tours.