Rhenish girls' high school has an annual outing for their grade 10 Life Sciences learners. The learners study the biotic factors of the fynbos at Helderberg Nature Reserve. Andreas Groenewald has guided us for many years. He is most knowledgable and relates well with the learners. We have found him very flexible and was able to adjust the content as our needs changed. I can highly recommend Andreas as a guide.