Pulfin Bog is very rich in plantlife. Fenland plants such as common meadow-rue, common valerian and marsh woundwort can be found during the summer along with yellow and purple loosestrifes and the rare marsh pea. Patches of scrub occur, most of them dominated by grey willow, but bay willow is also present.    

The opening of one of the springs has been greatly enlarged to form a pool providing habitat for aquatic plants including water soldier. In the shady understory below the willows the rare marsh fern can be found. Both sedge and reed warblers regularly breed around the margins and water rail, kingfisher and reed bunting can be found throughout the year. There have been 16 species of dragonfly seen, with large red damselfly and hairy dragonfly two of the first species to emerge in spring. Otters are present on the river and roe deer use the site regularly. Keep an eye on the sky as hobbies regularly hunt dragonflies during the summer.

Management takes place in autumn to reduce the spread of the more competitive reeds and to stop the spread of scrub on the drier areas.  Changes to the water levels and hydrology across the site have led to alterations in the species mix of plants and this is being monitored to assess the impact on the habitat overall and the species present.

• Spring: Invertebrates - Hairy dragonfly; Large red damselfly; Birds - Sedge warbler.
• Summer: Plants - Yellow flag iris; Yellow loosestrife; Marsh pea; Water soldier;  Inverterbrates - Brown hawker
• Autumn: Inverterbrates - Common darter; Migrant hawker; Birds - Snipe; Reed bunting
• Winter: Birds - Kingfisher; Water rail; Mammals - Otter

Pulfin Bog is remnant of the extensive fens that once occupied the valley of the River Hull and probably owes its survival to the springs that emerge as pools on the surface. The name Pulfin is believed to be a corruption of “pool fen”, the name given to the site in a 14th Century document. The nature reserve is bounded on three sides by the River Hull and on the fourth side is an old flood bank. When the site was acquired by the Trust a ditch was clearly visible bisecting the site into northern and southern sections. The northern half, dominated by reed sweet-grass, was grazed until 1955.

Public transport
Buses from Beverley stop in Tickton.

By car
Pulfin Bog lies about two miles north east of Beverley. The nearest parking is at Hull Bridge, on the old part of the A1035. From Beverley take the A1035 eastwards and after crossing the River Hull, turn right for Tickton, then right again immediately afterwards. Park on the roadside near the footbridge over the river. Walk north along the public footpath on the east bank of the river for about one-and-a-half miles until a large lake is reached. Turn left along the bank between the lake and the river, then right on reaching a row of trees. The nature reserve starts where the trees end.