This dive site, Cueva Anklis, also known as Churchdoor, is located off the coast of Menorca, Spain, and offers a unique underwater experience blending open water exploration with the option of cave penetration. It is accessible from both boat and shore, making it versatile for divers. The site is most notable for the impressive play of natural light seen from inside the cave, looking out towards the blue, creating dramatic visual effects. An Ariadne line guides divers up to 80 meters into the cave, allowing for safe penetration for those with appropriate training and experience.
Divers can anticipate encountering a diverse range of marine animals. The open water and reef areas are home to schools of damselfish, barracudas, white seabreams, and thick lip grey mullets. Within and around the cave's rocky structures, moray eels, mottled groupers, and larger groupers are commonly sighted, alongside more intricate species such as ornate wrasses, octopus, and gilthead seabreams.
The maximum depth for the typical dive profile is 19 meters, with an average depth of approximately 9 meters, making it suitable for a broad spectrum of recreational divers. Freedivers can particularly enjoy the shallower sections and the cave entrance. The best time to visit for optimal light conditions within the cave is generally during periods of strong sunlight. Divers attempting the full cave penetration should ensure they are properly equipped and possess advanced cave diving certifications, always adhering to safety protocols.

