Sparham Pools is a Norfolk Wildlife Trust nature reserve about 2 km west of Lenwade, set around a series of former gravel pits on the River Wensum floodplain. It's a quiet spot — paths loop around the water through willow scrub and rough grassland — and very good for birds: great crested grebes, tufted duck, kingfishers, and sedge warblers are all regular.
Access is free; there is a small car park off the Sparham road. The reserve is best visited in the morning for birds, or at dusk in summer when dragonflies and bats are active over the water. Sensible footwear is recommended as paths can be muddy after rain.