From Valencia: Montanejos Thermal Spring & San Jose Cave

The best part of this outing comes underground: a quiet boat ride through San José Cave, along Europe’s longest navigable underground river. Before that, you get warm water, waterfalls, and mountain views at Montanejos, making this a useful escape from Valencia’s city streets.

I like the 25°C thermal pools, which remain swimmable all year, and I like the practical setup: air-conditioned private transport, swimming noodles, life jackets, snorkel masks, and children’s water toys are provided. The Italian booking review singled out the driver and called the cave the finest part of the day, a fair verdict for anyone who prefers unusual sights to a long beach stop.

The main caution is time. Seven hours sounds generous, but about three and a half hours go to road travel, and the swimming stop includes only about 90 minutes in the water. Group-size information also varies between a maximum of eight and a general small-group limit of 15, so confirm the exact number when you book.

Key points to know before booking

• The water stays at 25°C year-round: Montanejos works in more seasons than a normal swimming trip.
• San José Cave is the star for many visitors: Expect a guided underground boat ride of about 45 minutes, with some descriptions allowing roughly an hour.
• The tour leaves from Mestalla Stadium: Meet at Gate N1, on the side facing Suecia Avenue.
• Transport takes a large part of the day: The drive from Valencia to Montanejos takes about 90 minutes, followed by roughly an hour to the cave.
• Swimming equipment is supplied: Noodles, life jackets, snorkel masks, and children’s water toys are available.
• The tour is easy to join but not fully flexible: There is no hotel pickup, and food is not included.

Why Montanejos makes a good break from Valencia

Valencia is a rewarding city, but after a few days of markets, museums, plazas, and busy streets, a change of pace can be welcome. Montanejos gives you that change without requiring a complicated car rental or a full multi-day trip.

The first stop is Aigües Termals de Montanejos, a natural thermal swimming area where the water stays around 25°C, or 77°F, throughout the year. That temperature is warm enough to feel pleasant but not hot like a spa pool. Think refreshing natural water rather than a steamy bath.

The setting is part of the appeal. The swimming area includes waterfalls and clear natural pools, with a look that the tour description compares to Thailand. I would not book this expecting a polished resort. The attraction is the outdoor setting, the warm water, and the chance to spend time among rock, water, and trees.

You get about 90 minutes for swimming. That is enough for a proper soak and a look around, but it is not a full day at the springs. If your main goal is to linger in the water for hours, this schedule may feel rushed. If you want a strong outdoor stop paired with a second major attraction, the timing works better.

The tour also includes noodles and safety equipment. You can use the noodles to float, while life jackets and snorkel masks add useful choices for swimmers of different comfort levels. Children’s water toys are available too, though babies under one year are not accepted.

The road from Valencia to Montanejos

The meeting point is beside Mestalla football stadium, at Gate N1 on the corner facing Suecia Avenue. Look for the side of the stadium on Avenida de Suècia rather than expecting hotel collection. Since hotel pickup is not included, allow enough time to reach the stadium before departure.

The drive to Montanejos takes about an hour and a half in air-conditioned private transport. That is a meaningful benefit in warm weather, especially when you will later be swimming and walking. You avoid the work of driving, parking, and finding the thermal area yourself.

You should still think about the road time before paying $116. The day includes several transfers: approximately 90 minutes from Valencia to Montanejos, about an hour from the springs to San José Cave, and another hour back to Valencia. That leaves around three and a half hours for the actual attractions, picnic time, and the short hike.

For me, the transport is most valuable for visitors who do not want to rent a car. It also helps families and small groups carry towels, clothes, and swimming items without dealing with public transport connections. The tradeoff is that you follow a fixed schedule.

Swimming at the 25°C thermal springs

Once you reach Montanejos, you go directly to the thermal spring area. The water temperature is the unusual feature. At 25°C all year, it avoids the shock of cold mountain water and remains suitable beyond the hottest months.

You can swim, float, and relax around the pools, then take in the waterfalls nearby. The provided noodles are especially handy if you like to rest in the water without constantly swimming. A snorkel mask lets you look below the surface, though the supplied details do not promise a particular marine or underwater sight.

The tour is described as suitable for all ages, apart from babies under one year. That means the stop can work for couples, families, and mixed-age groups, but you should still bring comfortable clothes and shoes. You will need to change from swimming gear before the cave and the ride back.

The 30-minute walk adds another layer to the stop. Rather than spending the entire visit at the water, you follow the guide to scenic points, hear local stories, and finish at a viewpoint. This is not presented as a demanding hike, but comfortable shoes matter. If you have limited mobility, the supplied information does not give enough detail about trail surfaces or access, so ask before booking.

The picnic lasts about 30 minutes. Food is not included, so bring your own meal or snacks. Treat this as a simple outdoor break, not a catered lunch. You will want water, especially if you swim and walk in warm weather.

The short hike and the viewpoint

The walk takes roughly half an hour, which is long enough to add views without turning the day into a hiking excursion. The guide points out local stories and lesser-known sights along the way, ending at a viewpoint with broad views over the surrounding area.

I like this part because it gives the thermal stop some shape. You are not simply driven to a pool, left alone, and moved on. The walk creates a short change of rhythm: water first, then a little movement and a higher view.

Still, keep your expectations in proportion. The supplied details do not name the viewpoint or promise a particular landmark. You should think of it as a scenic stop rather than a major mountain walk. Wear shoes that are comfortable for both the path and the rest of the day.

Entering San José Cave by boat

After Montanejos, the vehicle continues for about an hour to Coves de Sant Josep, also called San José Cave. This is the second major attraction and, based on the available booking feedback, the part most likely to become your favorite.

The cave contains an underground river described as the longest navigable underground river in Europe. The boat ride lasts about 45 minutes in the timed schedule, while the general description gives approximately 60 minutes. Plan for roughly an hour inside, but accept that the exact duration can vary.

You travel by boat through the cave with a guide, seeing the interior from the water rather than simply walking along a short tunnel. That makes the experience different from a standard cave visit. The underground setting also gives the day a strong finish after the open-air swimming and viewpoint.

The boat is described as a long-tail boat. The details do not provide the exact seating arrangement, so you should not assume you will control where you sit or how much room you have. If you are uneasy in enclosed places, consider that the cave portion is a significant part of the tour.

The attraction is also described as Europe’s largest navigable cave. Since the wording around size and river length varies, the practical point is simple: this is not a brief photo stop. You spend a substantial amount of time inside the cave, moving along the underground waterway and looking at its rock formations.

Tickets are included, along with an express security check. That saves you from arranging admission separately and makes the visit easier to fit into a seven-hour day.

What the guide and group size add

The tour includes a professional local guide who speaks English or Spanish. A guide matters here because the day combines transport, swimming, a walk, and a timed cave visit. You do not need to work out how the two attractions connect or manage the cave tickets yourself.

The guide also provides the stories during the Montanejos walk. That turns a short route into more than a transfer between the parking area and a viewpoint. The exact guide’s name is not provided, so you cannot request a particular person in advance.

Group-size details need a little care. The activity is described in one place as having a maximum of eight people, while the general small-group information gives a limit of 15 participants. That is still smaller than a large coach excursion, but the difference can affect how personal the ride and walking portions feel.

The Italian booking review gives the driver special credit and identifies the cave as the best attraction. That is useful context: transport quality can make or break a countryside day, and the driver has a central role because of the long road sections. Do not expect the driver to be the same person as the guide unless the operator confirms it.

Is $116 a fair price?

At $116 per person, the tour is not the cheapest way to visit a swimming area. Its value comes from combining several expenses and decisions into one day: private air-conditioned transport from Valencia, admission tickets, the cave boat ride, a local guide, insurance, and swimming equipment.

You are paying for convenience as much as for entry. A self-guided plan would require arranging transport to Montanejos, reaching San José Cave afterward, buying the appropriate tickets, and returning to Valencia. The two attractions are not next door, so the transport connection is a major part of the price.

I think the cost makes more sense for a first visit to Valencia, for visitors without a car, and for anyone who wants to see both sites in one day. It makes less sense if you only want a long thermal bath, since the water time is limited and the rest of the day is spent moving between locations.

Food is not included, and there is no hotel pickup. Add the cost of reaching Mestalla Stadium and bringing or buying your own lunch. Those are small details, but they matter when comparing this with other day trips.

The included accident insurance, taxes, and safety equipment add some reassurance. They do not replace sensible behavior around natural water. Follow the guide’s instructions, use the provided flotation equipment as needed, and bring suitable clothing for a day that shifts from swimming to walking to a cave boat.

What to bring and what to leave behind

Wear comfortable clothes and shoes. You need footwear that works for the short walk, and you should bring swimwear plus dry clothes for the ride back.

Pack food, since the picnic stop does not include a meal. Water is also sensible, especially if you use the swimming time and complete the walk in warm conditions.

The operator supplies noodles, life jackets, snorkel masks, and water toys for children. You do not need to carry those items, though you may prefer to bring personal swim gear if you have it.

Baby strollers are not allowed, and babies under one year are not accepted. Smoking is not allowed, and alcohol and drugs are prohibited, including alcoholic drinks in the vehicle. Those rules are worth noting for a family or group planning a relaxed day out.

Who should book this day trip?

I would recommend it to you if you want three different experiences in one outing: warm-water swimming, a short scenic walk, and an underground boat ride. It suits couples, small groups, families with older babies and children, and visitors who prefer guided transport to renting a car.

It is also a good choice for anyone who has already seen much of Valencia and wants a natural day outside the city. The combination feels more varied than a simple beach transfer.

You may want another tour if you dislike long drives, need a slow schedule, or want to spend most of the day in the water. The road sections take up a large share of the seven hours, and the thermal stop is only about 90 minutes.

I would also ask about the expected group size before booking. A group of eight feels quite different from a group of 15, especially during the walk and transport. The activity requires at least two participants, so it may not operate as a solo outing.

Should you book the Montanejos and San José Cave tour?

Book it if the cave sounds as appealing to you as the thermal springs. The underground river is the unusual centerpiece, while Montanejos gives the day a pleasant outdoor start with warm water, waterfalls, and a viewpoint.

At $116, the tour earns its price through transport, admissions, equipment, and the chance to connect two difficult-to-pair attractions in one day. Just go in knowing that this is an active, scheduled excursion, not a lazy spa day.

My practical advice is to bring lunch, wear reliable shoes, confirm the group-size limit, and arrive at Mestalla Stadium early. If you are comfortable with the driving time, this is a well-packed way to trade Valencia’s city center for warm pools and an underground river.

FAQ

Where does the tour meet in Valencia?

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

How long does the tour last?

The full experience lasts about seven hours. The schedule includes approximately 90 minutes to Montanejos, 90 minutes of swimming, a 30-minute picnic, about an hour to San José Cave, a 45-minute boat ride, and about an hour back to Valencia.

How warm is the water at Montanejos?

The swimming area stays at about 25°C, or 77°F, throughout the year.

Is the San José Cave boat ride included?

Yes. Tickets are included, and the scheduled underground boat ride lasts about 45 minutes. The general activity description allows approximately 60 minutes for the cave experience.

What equipment is provided?

Noodles, life jackets, snorkel masks, and water toys for children are provided. Air-conditioned transport, tickets, insurance, and a professional local guide are also included.

What languages does the guide speak?

The live tour is available in English and Spanish.

Can I cancel the booking?

You can cancel up to 24 hours in advance for a full refund. The reserve-now, pay-later option allows you to hold your place without paying immediately.