A half-day trip 50 minutes north of Valencia to the Coves de Sant Josep — Europe's longest navigable underground river. Electric boats glide through illuminated limestone caverns with stalactites overhead, followed by a short walking section. Constant 20°C inside — a welcome cool break in summer.
Highlights
- Europe's longest navigable underground river — about 800m by boat
- Electric boats through illuminated limestone caverns with stalactites and underground waterfalls
- Discovered by speleologists in 1902, opened to the public in 1929
- Constant 20°C inside year-round — refreshing in summer, layer up in winter
- Round-trip transport from Valencia included
- Guided commentary covering the geology and history
What's included
- Round-trip transport from Valencia
- Cave entry ticket
- Boat ride through the underground river
- Walking section (~250 m on foot)
- English-speaking guide
- Food and drinks
- Hotel pickup and drop-off
- Tips
- Souvenirs
Meeting point
Pickup
Central Valencia meeting point — typically Plaza de la Virgen or Hotel Las Arenas. Exact location confirmed at booking.
Cave location
Coves de Sant Josep, Vall d'Uixó (Castellón province) — roughly 50 km north of Valencia, around 50 minutes' drive.
Total trip time
5 to 6 hours including travel · Cave experience itself ~90 minutes (40 min boat + walking section + return).
Important information
What to bring
- Light jacket or layer — the cave is 20°C year-round, which feels cool from a hot day
- Closed-toe sturdy shoes — the walking section has uneven, sometimes wet ground
- Camera or phone — flash photography is not permitted
- Water — onsite kiosk is small and queues form mid-afternoon
Know before you go
- Some boat sections have low ceilings — duck when guides indicate
- Not recommended for severe claustrophobia or anyone with mobility issues that prevent low-ducking
- Boats are small but stable — life jackets provided for kids
- Brilliant in summer when above-ground heat hits 35°C+ — cave is the cool break of the day
- Pair well with Valencia's Old Town the next day — you'll want a slow city day after this
What travellers are saying
Travellers consistently say this is one of the most surprising activities in the Valencia region — most arrive without expecting much and leave impressed. Most-cited positives: the geological formations, the calm of the boat sections, and the cool relief in summer. Most-cited issue: shorter than some expect (the boat ride itself is about 40 minutes, not all afternoon).
Summarised from verified GetYourGuide customer reviews