Location: In the Bristol Channel, 11 miles north of Hartland Point, 25 miles west of Ilfracombe.
Grid Reference: SS 135 455
The Lundy IPA is of great importance for its vascular plants, marine algae and lichens.
The island is about 5km long and 1 km wide, lying on a north south axis, the west being very exposed to the weather while the east is more sheltered. Cliffs, mainly granite, rise to a plateau. Its granite and slate reefs make the area a marine algae hotspot, with as many as 300 species recorded.
Patches of grassland are spread amongst the cliffs, which are otherwise bare. Near the landing beach on the eastern side, the Lundy cabbage may be found whilst the south eastern cliffs support the balm–leaved figwort. Dry heath vegetation covers large parts of the plateau: waved calluna predominates at the northern end; principally, on the western side there are tussocky areas of Yorkshire fog and thrift.
A wide variety of lichens, numbered at 350 species and including the largest population of the golden hair lichen in the United Kingdom, may be found at the north end of the island.