Kick off yourmile journey at Swirls Car Park, located on the A Helvellyn, the 3rd highest mountain in England and one of the most sought after. Distance: km (m) Elev Gain: m High Point: Helvellynm Map: Lake District BMC Map GPS Download: Helvellyn Circular from Thirlmere Starting Point: Swirls Car Park © Distance km. Duration Activity Type Hiking. This trail starts at Swirls car park (pay and display) near Thirlmere Reservoir and climbs to the summit of Helvellyn, the highest peak in the Helvel