From Valencia: Montanejos Thermal Spring & San Jose Cave

Two very different natural escapes await. This seven-hour trip from Valencia pairs a swim in Montanejos thermal springs with a boat ride through San José Cave, the longest navigable underground river in Europe. I like the combination because you get warm outdoor water first, then a cool cave journey later, all without arranging separate transport.

I also like the small-group format, with air-conditioned private transport and a local guide speaking English or Spanish. The main point to consider is the amount of time spent on the road: roughly three and a half hours of the day is travel, and the group-size information is inconsistent, with one detail saying a maximum of eight people and another allowing up to 15.

Key points to know before booking

• Montanejos water stays around 25°C year-round, making the swim possible outside the hottest summer months.
• San José Cave includes about 45 minutes by boat, not just a walk through an ordinary cave.
• A 30-minute hike reaches a viewpoint near the thermal springs, adding scenery and local stories to the swim.
• The meeting point is Gate N1 at Mestalla Stadium, on the side facing Suecia Avenue.
• Swimming gear is supplied, including noodles, life jackets, snorkel masks, and children’s water toys.
• The driver and cave portion receive the strongest praise, with a perfect rating from a verified Italian booking dated October 21, 2025.

Leaving Valencia from Mestalla Stadium

Your day begins at Av. de Suècia, 27, beside Valencia’s Mestalla football stadium. Look for Gate N1 at the corner on the Suecia Avenue side. This is a useful meeting point, but it is not hotel pickup, so you need to make your own way there.

The first drive takes about 90 minutes. That is long enough to make the air-conditioning and private vehicle matter. You are not figuring out regional buses, changing routes, or trying to reach two rural sites under your own power. The tradeoff is clear: this is a full excursion, not a quick half-day outing close to Valencia.

The group is intended to be intimate. The supplied details refer both to a maximum of eight people and to a limit of 15 participants, so I would confirm the actual group size at booking. Either way, the format should feel more personal than a large coach tour, with more room to ask questions and fewer people competing for space at the water.

The guide leads in English or Spanish. The guide is described as professional and local, which matters here because the day depends on practical timing, safety, and explanations at two separate natural attractions. The driver has received particularly strong praise, so the quality of the road portion appears to be one of the tour’s better features.

A warm swim at Montanejos

After the drive, you go directly to the thermal springs at Montanejos. You have about 90 minutes for swimming. The main pool area stays at approximately 25°C, or 77°F, throughout the year. That is pleasantly mild rather than hot-tub warm, so set your expectations correctly. You can relax in the water, but this is not a scalding spa bath.

The setting is one of the main reasons to make the trip. The springs, waterfalls, and rocky surroundings have an almost tropical appearance, compared in the description to Thailand. You get an outdoor bathing experience rather than a polished resort facility. That gives the stop its appeal, but it also means you should bring comfortable clothes and shoes suited to natural ground.

The tour provides noodles and life jackets, along with snorkel masks and water toys for children. That is helpful if you want a little support in the water or are traveling with younger children. The activity is described as suitable for all ages, though babies under one year are not accepted.

You should not expect unlimited time here. Ninety minutes includes getting ready, swimming, and simply sitting by the water, so you will need to use the time sensibly. If you want a long, slow afternoon at the springs, a private visit would offer more freedom. If you want the springs as one part of a varied day, the scheduled stop works well.

The 30-minute walk to the viewpoint

The water stop is followed by a roughly 30-minute hike. This adds welcome movement after the drive and gives you a chance to see more than the swimming area. Along the route, the guide shares stories and points out notable sites before taking the group to a viewpoint with broad views.

The hike is described as manageable and the tour is suitable for all ages, but comfortable shoes are still important. The activity information does not give a detailed difficulty rating or describe the surface, so you should not arrive in flip-flops simply because swimming is part of the day. Bring shoes you can walk in safely.

This section is valuable because it breaks up the excursion. Without it, the Montanejos visit would be mainly a swim followed by another long drive. The walk gives the first half of the day a little more character and helps you understand the area beyond the water.

A picnic follows for about 30 minutes. Food is not included, so bring your own meal or snacks. This is one of the practical points that can easily be missed when focusing on the springs and cave. Pack something simple that travels well, plus water for the day. The provided information does not specify a restaurant stop, so do not count on buying lunch as part of the schedule.

Crossing to San José Cave

After Montanejos, you travel for about an hour to Coves de Sant Josep, also called San José Cave. The change in scenery is part of the attraction. You go from open-air thermal pools and waterfalls to an enclosed cave system with an underground river.

The cave is described as the longest underground river in Europe and the largest navigable cave in Europe. The boat ride is the central event here, lasting about 45 minutes. A boat carries you along the underground river, allowing you to see the cave interior from the water rather than simply passing through a visitor walkway.

This is the portion that has drawn the warmest praise. The strongest available feedback gives the experience five out of five, with special approval for the cave and the driver. That emphasis makes sense: the boat ride is more distinctive than a standard cave tour, and it gives the second half of the day a clear highlight.

There is a minimum of two participants for the cave portion. That means a solo booking may not operate by itself if no second person is booked. The supplied information does not explain how the operator handles a booking below that minimum, so solo visitors should check before paying.

Skip-the-line access and an express security check are included. This can save time at a popular attraction, though it does not mean the cave is private or that every queue disappears. The practical benefit is a smoother arrival, especially on a tightly timed day that still has a long return drive.

How the timing shapes the day

The planned schedule is straightforward:

• About 90 minutes from Valencia to Montanejos
• Around 90 minutes at the thermal springs
• A 30-minute picnic
• About one hour to San José Cave
• Roughly 45 minutes on the underground river
• About one hour back to Mestalla Stadium

The listed total is seven hours. The individual transport times add up to about three and a half hours, which is a significant part of the excursion. I would choose this tour because the two attractions are difficult to combine without transport, not because it offers long, unhurried visits at either location.

The schedule also means delays could affect the return time. The information does not provide a precise arrival time, only the seven-hour duration and a return to Av. de Suècia, 27. If you have an evening reservation in Valencia, leave a cushion rather than planning something immediately after the tour.

The order makes sense. You begin with the outdoor swim while energy is fresh, take a picnic break, then settle into the cave boat ride. The cave requires less physical effort than the hike and provides a cooler, quieter finish before the drive back.

What the $116 price includes

At $116 per person, this is not the cheapest way to see a natural attraction near Valencia. The value comes from combining two separate sites in one day and removing the transport problem between them.

Your price includes private transport from Valencia, an air-conditioned vehicle, tickets, accident insurance, taxes, and a professional local guide. It also covers the cave entry and express security access. The supplied swimming equipment adds practical value, especially if you are not carrying your own gear.

Food is not included. That is not unusual for a day trip, but it means you should budget for a picnic before departure. Hotel pickup is also excluded, so the price does not cover every step from your accommodation to the tour and back.

I consider the price reasonable for someone who values convenience and wants both Montanejos and San José Cave on the same day. It is less compelling if you only want thermal water, since a visit focused on Montanejos would give you more time at the springs. It is also less attractive if you prefer independent travel and are comfortable arranging regional transport yourself.

What to bring and what to leave behind

Pack comfortable clothes, sturdy walking shoes, swimwear, a towel, sun protection, and food for the picnic. The stated requirements only list comfortable shoes and comfortable clothing, but the swimming portion makes a change of clothes a sensible choice.

You do not need to bring flotation equipment or children’s water toys if you are happy using the supplied items. Noodles, life jackets, snorkel masks, and toys are available for children. Bringing your own snorkel mask is optional, not a requirement.

Smoking is not allowed, and alcohol and drugs are prohibited. Alcoholic drinks are also not permitted inside the vehicle. Baby strollers are not allowed, and babies under one year are not accepted. These rules may matter more to families than to other participants, so check them before booking.

Who will enjoy this excursion most

I would recommend this day to you if you want a mix of swimming, light walking, scenic views, and a memorable cave ride. It suits people who prefer an organized outing and do not want to manage rural transport in the Valencian Community.

Families can benefit from the supplied water equipment and the all-ages format, though the stroller restriction means you need to plan accordingly. The cave’s minimum of two participants is also worth noting for solo parents or single visitors.

The tour is less suited to anyone who wants a quiet spa day, a strenuous hike, or a long independent visit at either stop. You are following a fixed schedule, and the driving time is substantial. The experience works best when you see the journey as a two-part nature day rather than as a deep visit to one location.

The guide’s local knowledge should also help bring meaning to the short hike and the cave visit. Do not expect a specialist expedition. This is a comfortable sightseeing trip with a few active moments, not a technical outdoor adventure.

Should you book the Montanejos and San José Cave tour?

Book it if you want the simplest way to pair a warm spring swim with a 45-minute underground boat ride from Valencia. The cave is the strongest reason to go, while Montanejos adds relaxation, outdoor scenery, and a chance to cool off in naturally warm water.

Think twice if $116 feels high for a day with several hours on the road, or if you want a slower visit at the springs. Before booking, confirm the expected group size because the information gives both eight and 15 as the maximum. Also check that at least two people are booked for the cave portion.

With free cancellation up to 24 hours before departure and a reserve-now, pay-later option, the booking terms are flexible. For many visitors, the convenience, equipment, tickets, and local transport make the price fair. Just arrive at Mestalla Stadium ready for a full day, bring your own food, and treat the cave boat ride as the main event.

FAQ

Where does the tour meet in Valencia?

The meeting point is at Mestalla football stadium, at Gate N1 on the side facing Suecia Avenue, at the corner. Hotel pickup is not included.

How long is the tour?

The full experience lasts about seven hours, including transport from Valencia, the thermal springs, the picnic, the cave boat ride, and the return journey.

How warm is the water at Montanejos?

The swimming area is approximately 25°C, or 77°F, throughout the year.

How long is the boat ride in San José Cave?

The underground boat ride lasts about 45 minutes.

Is food included?

No. Food is not included, so you should bring your own picnic or snacks.

What languages are available?

The live guide is available in English and Spanish.

Is the tour suitable for children?

The experience is described as suitable for all ages, but babies under one year are not accepted. Noodles, life jackets, snorkel masks, and water toys for children are provided.