Gaping Gill is a well-known cavern where the Fell Beck dropped 98m making it the tallest waterfall in England. I saw it by a hike and winch from Ingleborough.
Ingleton Waterfalls Trail (Thornton Force, First Pecca Falls, Twin Pecca Falls, Holly Bush Spout, Beezley Falls, Triple Spout, Rival Falls, Baxenghyll Gorge, Snow Falls)
Ingleton Waterfalls Trail is a 4.5-mile loop accessing many waterfalls (including Thornton Force) on the River Twiss and the River Doe in the Yorkshire Dales.
Aysgarth Falls is a series of three waterfalls on the River Ure all accessed by an easy hike in the rolling hills of Yorkshire Dales National Park in England.
Hardraw Force is a 30m single-drop waterfall reached by a short walk behind the Green Dragon Inn in the hamlet of Hardraw in the Yorkshire Dales, England.