Impres­sive­ly in use now for over 1,500 years, it was orig­i­nal­ly inhab­it­ed by Arawak and Cai­que­tio Indi­ans who left behind both intri­cate pet­ro­glyphs and cave paint­ings. Cen­turies lat­er, the exten­sive under­ground cave sys­tem act­ed as a refuge for run­away slaves from the plan­ta­tions. Formed over the course of many mil­len­nia, their var­i­ous shapes and sil­hou­ettes make for a spell­bind­ing sight, par­tic­u­lar­ly as they are illu­mi­nat­ed by lots of lit­tle lights.