Catedral de Cala Llonga (Cathedral Cave)
Also known as: Cathedral Cave Ibiza
Best time to dive
May to October; June to September
What you might see
- Moray eelLikely
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - Limited - the cave opening is visible near the surface/shallow entrance area, but the interior air-pocket chamber requires scuba certification and equipment to reach safely; not a standard snorkel excursion site.
Safety notes
Overhead/cave environment (silt-out and disorientation risk if penetrating beyond the entrance chamber), need for torches/lights due to low ambient light, recreational boat traffic overhead near the entrance, and depth-dependent risk if diving the deeper (28 m) profile reported by some sources.
Permits & fees
Cala Llonga is not within Ibiza's two formal marine reserves (Ses Salines Natural Park or Els Freus/Es Freus Marine Reserve between Ibiza-Formentera), and no site-specific diving permit was found; standard Spanish diving-insurance and any general Balearic fishing/diving regulations would still apply. Use "-" pending confirmation of any local restriction.
Permits and operators change - confirm before booking.
Location
Nearest hub: Santa Eulalia
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.