Extreme E championship schedule: Desert X-Prix - 3/4 April - Wadi Rum, AlUla, Saudi Arabia Ocean X-Prix - 29/30 May - Lac Rose, Dakar, Senegal Artic X-Prix - 28/29 August - Kangerlussag, Greenland Amazon X-Prix - 23/24 October - Santarem, Para, Brazil Glacier X-Prix - 11/12 December - Tierra del Fuego, Argentina afp