Xigia Sulfur Beach is a distinctive site in Zakynthos defined by natural sulfur springs that flow directly into the sea, creating a milky-blue appearance. The underwater topography features karst caves and reef structures. Due to the influence of these springs and cliff shadows, water temperatures are generally cooler than at other local beaches, averaging 20°C in summer. Visibility may be slightly reduced by the sulfur content. The site is accessible from the shore and is suitable for beginners, although the water can be deep. Facilities at the location include parking, a cafe, and showers.

HMS Perseus is a British submarine from World War II resting on the seabed off Kefalonia. This technical dive site sits at depths between 48 and 52 metres, requiring trimix certification and rigorous gas management. Access is by boat only, located 1600 metres from the shore. Visibility typically ranges from 10 to 30 metres, allowing for observation of the hull structure. While currents are generally mild, they can strengthen without warning. Due to the depth and potential for entanglement, this site is strictly for experienced divers with overhead environment training. Divers must coordinate with boat operators experienced in technical wreck diving to ensure safety.

Filippoi Beach is a quiet, unorganised cove located on the northwestern coast of Zakynthos, Greece, defined by high surrounding cliffs. The site features a combination of reef and cave topography, with several small caves accessible by swimming directly from the shore. Snorkellers can expect visibility ranging between 20 and 30 metres. The environment supports a variety of Mediterranean reef fish and invertebrates typical of the region. Water temperatures fluctuate significantly throughout the year, ranging from 16C in the cooler months to 27C in August. Due to the presence of sharp coral and potential surf, this site is best suited for intermediate snorkellers.

Kakava Amphorae Yard is an underwater archaeological site located 300 metres off the coast of Kefalonia, Greece. The site features the remains of ancient Roman and Byzantine shipwrecks, with scattered amphorae, metal ship parts, and ancient anchors embedded directly into the reef. Divers and snorkellers can explore these historical remnants at depths ranging from 2 to 8 metres. Access to the site is by boat only. Conditions are generally suitable for intermediate divers, with mild currents and visibility typically between 20 and 25 metres. The water temperature fluctuates throughout the year, ranging from 16C in the cooler months to 26C during the summer.

Porto Limnionas is a narrow, rocky inlet on the western coast of Zakynthos. The site features a varied topography of walls, overhangs, small caves, and boulder-strewn seabeds. Depths range from 2 to 15 metres, with visibility typically between 10 and 25 metres. Snorkellers should be aware of freshwater springs within the caves, which create distinct layers of water with varying salinity and temperature. Entry is from the shore, and the site is suited for intermediate snorkellers due to the overhead environment and depth. Be mindful of boat traffic in the area. Facilities including parking, toilets, changing rooms, and a cafe are available nearby.

Pessada Beach in Kefalonia consists of two small coves divided by rocky outcrops. The second, more secluded cove features unique rock formations that create shallow, lagoon-like environments suitable for beginners. Snorkellers can observe a variety of marine life, including very common wrasses and rabbitfish. Other species frequently encountered include great barracuda, European parrotfish, Turkish wrasse, striped red mullet, and various bream. Less common sightings include the Mediterranean cardinalfish, painted comber, and the loggerhead sea turtle. Entry is from the shore, where water temperatures range from 16C to 27C. Be cautious of sea urchins when entering the water. Parking and a cafe are located nearby.

Porto Roxa is a rugged rocky cove on Zakynthos, Greece, offering a mix of reef, artificial reef, and cave topography. The site features a steep, rocky seabed with depths starting at 15 metres. Entry is via the shore, where a diving platform is available. Conditions are variable with mild currents and visibility ranging from 10 to 25 metres. Water temperatures fluctuate between 16C and 27C, with colder waters present. Divers and snorkellers should be aware of surf and boat traffic in the area. Species recorded around this area include Indian Lionfish, Turkish Wrasse, European Parrotfish, and various bream species, alongside tube worms and snails.

Agios Thomas in Kefalonia is a reef, cave, and cavern site accessible from the shore. Divers and snorkellers enter via a metal ladder located on a rocky slab, leading directly into a deep, rocky lagoon. The topography is defined by limestone formations, including underwater caves and natural jacuzzis carved into the rock. With depths ranging from 1 to 8 metres and an average of 5 metres, the site is suitable for beginners. Visibility typically spans 15 to 25 metres, and currents are generally mild. Facilities at the site include parking, showers, changing rooms, and a cafe. A typical dive lasts 60 minutes.