The Secret Half Marathon & 20 Miler

The Secret Half Marathon & 20 Miler

Sunday, 15 March 2026

Mickley Hall, Nantwich, Cheshire, UK

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The Secret Half Marathon & 20 Miler on 15 March 2026 are based on flat courses along Cheshire county lanes.

Starting at Mickley Hall, the fast Half Marathon is on a 2 loop course. With less than 200ft of elevation gain over the 13.1 miles, this race will maximise PB potential.

The Secret 20 Miler, with only 280ft of climb over 20 miles, is ideally placed for training for a spring Marathon.

This event is organised by the South Cheshire Harriers.

Distances/Events

Half Marathon
20 miles

Location map

Races start at Mickley Hall. The event village is at Hack Green Secret Nuclear Bunker.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

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This listing was last manually checked on 25 November 2025.

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