The Son Doong Cave expedition tour – exploring the world’s largest natural cave – continues to cement its status as a premier adventure travel experience in Vietnam, with bookings now filled through the end of 2027. According to the operator, all 1,000 available slots for the 2026 season have already been reserved, with expeditions set to begin in late January 2026. Reservations for 2027 have also been fully secured well in advance, reflecting sustained demand from both local and international travelers.

A Decade of Conquering a Natural Wonder

Since commercial operations began on August 1, 2013, Son Doong Cave has welcomed over 8,550 explorers from around the world. Vietnamese adventurers account for the largest group, followed by visitors from the United States and other countries.

Over the years, Son Doong tourism has generated approximately USD 25.5 million in revenue and contributed around USD 5 million to the conservation efforts of Phong Nha – Ke Bang National Park. Beyond economic impact, the expedition has also created 130 direct jobs for local residents and supported hundreds of indirect livelihoods, contributing to sustainable community development.

Sold Out Through 2027 – A Testament to Enduring Appeal

The fact that Son Doong tours are booked years in advance not only highlights the exclusivity and allure of this once-in-a-lifetime adventure, but also underscores the growing global interest in Vietnam’s adventure tourism offerings.

Despite the long wait, the excitement surrounding the Son Doong expedition continues to grow, capturing the imagination of thrill-seekers and nature lovers worldwide.

Phong Nha – Ke Bang: A World-Class Adventure Destination

Son Doong’s popularity has also stimulated interest in other cave exploration products within the Phong Nha – Ke Bang cave system. From moderate adventure trips to rugged multi-day treks, the region offers a variety of experiences suited to different levels of explorers.

With its vast cave networks, dramatic karst landscapes, and UNESCO-recognized heritage status, Phong Nha – Ke Bang National Park remains a top destination for adventure travelers from around the world.

Explore more with Phongnha Discovery Tours

In addition to the iconic Son Doong expedition, travelers can choose from a wide range of other exciting tours and experiences offered by Phongnha Discovery Tours — from immersive cave explorations to scenic nature adventures — perfect for both first-time visitors and seasoned explorers eager to discover the wonders of Phong Nha