Swartkrans, one of the Cradle’s rich­est fos­sil sites, is usu­al­ly closed to the pub­lic. But on these tours, small groups will have a rare oppor­tu­ni­ty to observe an active palaeon­to­log­i­cal dig and will be guid­ed around the site by sci­en­tist Mor­ris Sut­ton, who is cur­rent­ly exca­vat­ing there.