From expansive caves to towering waterfalls, the countries of Southeast Asia truly demonstrate the power of Mother Nature.

Ha Long Bay, Sapa, Phong Nha Cave, Son Doong Cave, the Sand Dunes of Mui Ne, Thac Ba Waterfalls have been named among 25 natural wonders in Southeast Asia you have to experience to believe, according to Fodors, a publisher of English language travel and tourism information and the first relatively professional producer of travel guidebooks.

With around 2,000 islets sprawling across an indescribable landscape of almost 600 square miles, there’s no wonder Ha Long Bay was named one of the New Seven Natural Wonders of the World.

Located in the northern coastal region of Vietnam, there are several junk-boats that offer daily and multi-day sails in Ha Long Bay with included excursions such as kayaking, cave expeditions, and in-depth tours through some of the last remaining fishing villages inside the bay, Fodors wrote.

Sapa is home to the highest mountain in Vietnam (Fan Si Pan), picturesque rice fields, and several remaining tribal groups. Known for its adventurous trekking and natural landscapes, Sapa is the ideal vacation destination for those looking to break a sweat while also enjoying the unique flora and animals native to the region. If you like a little luxury with your nature, there are dedicated spas and resorts that overlook the greenery, mountains, and rice fields.

Home to an expansive underground lake, as well as one the largest underground rivers in the world, Phong Nha is a must-see for travelers heading to northern Vietnam. Located inside Phong Nha-Ke Bang National Park, a UNESCO World Heritage Site, the caves serve as the park’s main attraction.

The largest cave in the world, Son Doong Cave was carved by underwater springs over three million years ago and was recently opened to the public starting in 2013. It is said that more people have climbed up all 1,576 steps of the Empire State Building than have ventured into Son Doong Cave so you’ll want it on your list for bragging rights alone.

On the list, Ha Long Bay is followed by Sapa, Phong Nha Caves, Son Doong Cave, the Sand Dunes of Mui Ne, Thac Ba Waterfalls, Ba Vi National Park, Thi Lo Su Waterfall, Doi Inthanon National Park, Bua Thong Waterfall, among others.

Hanoitimes