DAVAO CITY --- There are over 199 caves or caverns in Davao region and each one displays spectacular beauty, the gaze and its glitters brings radiance to every form. A Cave features are usually formed by slow-moving water that has a high calcium carbonate content. The Department of Environment and Natural Resources regularly conducts inventory and assessment and … [Read more...] about DENR XI discovers class 1 cave in Davao de Oro