It’s best to drink bottled or filtered water. Tap water may not be safe for foreign travelers, especially those with sensitive stomachs.
Underground River Palawan
To help conserve the Puerto Princesa Subterranean River and its wildlife, officials restrict the number of visitors each day. This helps keep the ecosystem intact and ensures people can enjoy the park for years to come. To take the Puerto Princesa Underground River Tour, tourists must obtain a permit, which takes about three days to process. Travel agencies can arrange this in advance to secure a spot.
