Bowesfield
A wetland reserve formed by three loops in the River Tees. It homes an increasing and varied number of birds such as stonechat, water rail and curlew. Otters and sand martins are often spotted along the river. Reed bunting and harvest mouse live in the reedbeds whilst roe deer can often be seen
Hardwick Dene & Elm Tree Wood
Consisting of two beck valleys and grassland, this reserve is a mosaic of habitats. The most abundant wildlife is the scrubland, mainly hawthorn with blackthorn, dog rose and gorse. It provides nesting grounds for a range of birds. Wildflowers such as water mint and cuckoo flower can be seen here.
Portrack Marsh
Situated on the north band of the River Tees, the main lake of this reserve provides ample opportunities to see wintering duck and the grasshopper warbler. The fluctuating water levels dictate what birds are seen and when
Maze Park
Maze Park is an urban reserve, situated on former railway marshalling yards. The resulting landscaped mounds now feature a variety of broad-leaved species. Over 12 species of butterfly have been recorded on the other habitat type, grassland, and the proximity to the river provides ample opportunities to see common seals.
Brewsdale
This reserve is a narrow lowland valley with a scrub woodland on its steep slopes. Large specimens of field maple can be seen and in spring and summer a range of woodland species occur, including early purple orchid and sanicle. Good numbers of ringlet butterfly and bird species such as yellowhammer and tree sparrow can be seen here
Margrove Ponds
Made up of a large shallow lake fringed by reedbeds, reed swamp and scrub patches, this reserve attracts over 130 species of bird. Species found here differ with the carying water levels, from sedge warblers throughtout the summer to tufted duck throughout the year
The Howls
This reserve is a pretty woodland dominated by ash and sycamore. It features gooseberry in parts and spring flowers include early purple orchids, violets and the locally uncommon twayblades. The Char Beck runs through the reserve and plants such as Marsh Marigolds and Meadowsweet thrive here
Coatham Marsh
Coatham Marsh features two large lakes and Middle and West Marsh. There wetland features attract a diverse range of birds in nationally important numbers. Different species appear at different times of year, from the Shelduck in spring to the widgeon and teal in winter. Mammals seen here include foxes, stoat and water vole.
Gravel Hole
An interesting site to visit at any time of the year, Gravel hole is a small disused sand and gravel pit with a mixture of grassland and scrub. It is buzzing with butterflies and other insects in the summer, which is also the best time to see the wildflowers. Woodpeckers, winter thrushes and waxwings may also make an appearance throughout the year
Saltburn Gill
An attractive woodland with a stream along the western boundary, this site represents what used to cover East Cleveland. Woodland wildflowers make an attractive view in summer, with wild garlic, bluebells and the Lesser Celandines. There is an abundance of summer migrant birds, including chiffchaffs and willow warbler