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Discover the natural thermal springs of Montanejos and explore Europe's longest underground river on a small-group tour from Valencia, blending relaxation and adventure.

Imagine soaking in warm, mineral-rich waters while surrounded by stunning natural scenery, then exploring an underground river so vast it’s classified as Europe’s longest navigable cave. This experience from Valencia offers just that—combining relaxing thermal springs with an adventurous cave tour in one memorable day. The small-group format, led by knowledgeable guides, adds an intimate touch that makes it stand out from more generic excursions.
What we love about this tour is the perfect blend of nature, adventure, and relaxation—it’s ideal for those who want a well-rounded day out. That said, it involves a fair bit of travel and walking, so it may not suit travelers with mobility issues or those seeking a more leisurely pace without physical activity. Still, it’s perfect for those eager to discover Valencia’s natural gems in a fun, family-friendly setting.
One potential consideration is the need to meet at a designated point in Valencia rather than being picked up directly from your hotel, which might require some planning. This tour appeals most to travelers looking for an active day that offers both wellness and awe-inspiring sights.


The day kicks off at the meeting point on Av. d’Aragó, near the iconic Mestalla stadium. From there, you’ll hop into a private, air-conditioned bus for a roughly 1.5-hour drive into the Valencian countryside. This part of the trip is for those who appreciate comfortable transport and don’t want to worry about logistics—plus, it offers a chance to get a quick preview of the region’s scenic landscapes.
Once in Montanejos, the highlight is obviously bathing in the mineral-rich thermal waters. The springs look remarkably like the lush pools of Thailand, with warm water maintained at around 25°C/77°F throughout the year—an ideal temperature for soothing tired muscles or simply relaxing on a sunny day.
The tour typically allows about 1.5 hours here, giving ample time to swim, soak, and explore the waterfalls that surround the springs. A key detail from reviews is that the guides often take the group on a 30-minute hike around the area, revealing stunning views and sharing stories about the springs’ natural history. These hikes are manageable and add a layer of discovery beyond just soaking in the waters.
After a swim, you’ll have about 30 minutes for a picnic, which you can bring along or pack for yourself, depending on your preferences. During this downtime, many participants comment on the peaceful environment and breathtaking vistas, making it a perfect moment to unwind and snap some photos.
Next, the adventure moves underground. The San Jose Cave is a true highlight—it’s Europe’s longest navigable underground river, and you’ll explore it via a 45-minute boat ride in a long-tail boat. The boat ride is a unique chance to see the cave’s spectacular interior from a different perspective; the guides do a great job explaining the geological features and safety procedures.
Inside the cave, you’ll see remarkable rock formations, and depending on your guide, you might also learn about the cave’s history and significance. The tour includes tickets and skip-the-line access, meaning you won’t waste precious time in queues, and the experienced guides keep everything flowing smoothly.
After the cave adventure, the bus makes its way back, with an estimated 1-hour drive home. Many reviews mention that the whole day feels well-paced, with breaks for rest and photos. The trip ends back at the original meeting point, leaving you with a sense of accomplishment and plenty of memories.

Knowledgeable Guides: From the moment you set off, guides like Miguel or Lucia (based on reviews) are praised for their friendly, informative approach. They share stories about the landscape, geology, and local history, making the experience more meaningful.
Stunning Views and Natural Beauty: Whether soaking in thermal waters or gazing at the cave’s formations, the natural scenery is consistently highlighted as breathtaking. The pathways and viewpoints are chosen for their photogenic qualities, so don’t forget your camera.
Family-Friendly Atmosphere: With water toys, snorkel masks, and life jackets provided, this tour is accessible for children over the age of one (no strollers). The safety measures and small group size make it suitable for families, couples, or solo travelers seeking a more personalized experience.
Value for Money: At $129 per person, including transport, tickets, guides, and safety gear, the tour offers excellent value, especially compared to booking separate activities or transportation.

The private, air-conditioned vehicle ensures comfort, especially after a long drive or on hot days. The itinerary is designed to maximize time at each site, with clear segments for swimming, hiking, and exploring the cave.
Limited to 8 participants, the small group size means more interaction with guides, shorter wait times, and a chance to ask questions. This intimacy makes the experience more engaging and flexible, particularly if you want personalized tips or have specific interests.
Comfortable shoes and clothes are a must—think waterproof footwear for the caves and sturdy walking shoes for hikes. Don’t forget sunscreen and a hat for the outdoor portions, and perhaps a towel for after the hot springs. Water is provided in summer, but bringing your own hydration is always wise.
While the tour is suitable for all ages, it’s not recommended for babies under 1 year or those with mobility issues, given the walking and hiking involved. The caves require some walking, and the boat ride, while smooth, involves being seated in a boat for about 45 minutes.
This experience suits travelers who love outdoor adventures combined with moments of relaxation. It’s perfect for families with older children, couples, or solo travelers eager to explore nature’s wonders in a small-group setting. If you’re curious about caves, enjoy natural thermal baths, or want a day away from city life, this tour ticks all those boxes.
This tour offers a balanced mix of wellness and adventure, making it a great choice for travelers who want to see more of Spain’s natural beauty without sacrificing comfort. The knowledgeable guides, stunning vistas, and small-group vibe create an experience that feels both special and authentic.
While it involves some physical activity, it rewards you with the chance to relax in thermal waters and explore one of Europe’s most impressive underground caves. For those who appreciate carefully curated trips that combine nature, history, and fun, this is a highly recommended choice.

Is transportation provided from Valencia?
Yes, the tour includes private transportation in an air-conditioned vehicle from a designated meeting point in Valencia.
Do I need to bring my own water or snacks?
Water is provided in summer, but it’s recommended to bring your own, along with snacks if you wish to stay energized during the day.
Can children participate in this tour?
Yes, the tour is family-friendly, with water toys, snorkel masks, and life jackets available for children, although babies under 1 year are not suitable.
How long is the boat ride inside the cave?
The boat ride lasts approximately 45 minutes, giving you a comfortable yet immersive view of the underground river.
Is there any physical activity involved?
Yes, there’s about a 30-minute hike at Montanejos and some walking in the caves. The overall pace is manageable, but be prepared for outdoor activity.
What should I wear for the trip?
Comfortable shoes suitable for walking and hiking, lightweight clothing, and swimwear for the springs are recommended.
This tour combines the best of natural relaxation and adventurous exploration, making it a fantastic day trip to experience the wonders of Valencia’s surroundings. Whether in search of tranquility, curiosity, or a bit of both, it’s a journey worth considering.