It’s best to drink bottled or filtered water. Tap water may not be safe for foreign travelers, especially those with sensitive stomachs.
Puerto Princesa, Palawan
Underground River
To support environmental conservation, management limits the number of tourists entering the Puerto Princesa Subterranean River each day. This restriction helps conserve the area’s biodiversity and ensures future generations can continue to enjoy the national park. A permit is required for the Puerto Princesa Underground River Tour, and the processing time typically takes three days. Travel agencies can arrange permits in advance to secure a guaranteed slot.
