Reserves keepers Sonia and Jenny will be tackling a 50km trek through the Brecon Beacons this September, in aid of charities Helping Rhinos and Bongo Surveillance Project.

Every minimum £5 donation received via the JustGiving page will be automatically entered into a prize draw, giving supporters the chance to win an unforgettable experience with the rhinos and bongos at Woburn Safari Park.