It’s called one of the new wonders of the world. An underground river, spanning nearly 24 km long on Palawan’s west coast. It’s also happens one of the island’s biggest tourist attractions. I had debated whether or not I would visit here. I’ve been in a couple of underwater river caves before. But when I asked a few other travelers what their favorite thing to do on the island was, they said the underground tour, so I jumped on ship. Booking my tour in Puerto Princesa was su