This limestone hill near Carnforth stands at 163 metres (535 ft) making it the highest point in the Arnside and Silverdale Area of Outstanding Natural Beauty. It is also a nature reserve with grassland, ancient semi-natural woodland and limestone pavement, supporting some of Britain's rarest butterflies. From the high point there are fabulous views of the River Keer estuary, Morecambe Bay, the Forest of Bowland, the Lake District Fells and the Yorkshire Dales.
The area supports rare plants such as Rigid Buckler Fern and Juniper, Pale St. John's Wort and Angular Solomon's-seal. In the woodland area you can find Wood Anemone, Bluebell and Primrose as well as Early Purple Orchid, Violets and Pignut. It is also home to many rare butterflies including Pearl Bordered Fritillary, Small Pearl Bordered Fritillary and High Brown Fritillary.
If you would like to continue your walk you could head to the nearby Leighton Moss Nature Reserve where you will find the largest reedbed in the north west and an abundance of wildlife. The Lancashire Coastal Way also runs past Warton Crag so you could pick this up and head towards Arnside Knott where you can find more interesting wildlife and plantlife.