Nikki Han talks about her preparation and dedication to becoming the first woman to finish the Hong Kong Four Trail Challenge, how her career as a trail runner has developed and how life has changed since her history-making effort.

Photographer Lloyd Belcher and the art of capturing trail runners in action

Whether you run, jump, cycle, swim or climb, listen in each fortnight as your hosts Mark Agnew and Mary Hui chat with key figures in trail running and adventure sports about the big issues they are facing. Brought to you by the South China Morning Post.