that is what uhuru is. uhuru is a no nonsense lady. so, anything coming around, she will attack.eporter: three rhinos cross our path. the driver is getting a little nervous. raymond: she is just coming to check. reporter: the safest move when you see a rhino is to freeze. then it understands you don't represent a threat. raymond: ok, we can continue. reporter: about 90 rangers work here. angie genade is in charge. she's been running the rhino fund since 2008, and has brought a lot of new staff on board. and the number of animals in the sanctuary has almost doubled under her direction. angie: the situation of the rhinos has been dire for a long time. there was a short period, maybe in the 1970's, early 1980's where rhinos were pretty secure, and then the poaching spiked. the problem is, it doesn't just spike in one country, it spikes all over. reporter: poachers haven't killed any animals in the sanctuary. the rhino fund has been breeding them here for 18 years now. the first was brought in from kenya, others from various zoos. when out in the bush among the rhinos, it's important

. >> reporter: but we still had to reach uhuru peak. 531 feet above us. >> 15% less oxygen up here and hour has been really hard. >> reporter: after a few needed breaks -- >> i'm struggling. the struggle is real. >> reporter: -- finally. i can see the peak. >> worth getting emotional. because i know that you've all worked really hard and i think anything worth doing requires a little bit of courage. it's about who you're with. >> you did it. >> reporter: and the journey up and the lessons you learn along the way. facing fear of all kinds and part of facing fear is climbing virtual mountains and real mountains. >> wow. >> i'm just so proud of my family who came with me. my 65-year-old dad all the way down to my 12-year-old daughter and when i called they all said yes. so that was everything to me. now i'm silly crying. >> i'm crying because i think that health is so precious and to see how hard we felt that was and imagine why i'm crying, i can't imagine how hard it's been and i don't think about it every day because it's not me. but now i am. >> thank you and you guys are also my famil