Cala Nave is a volcanic sand beach on Ventotene, offering accessible snorkeling around the Nave di Fuori and Scoglietello rocks. The site features a mix of reef and seagrass habitats, specifically Posidonia meadows. Depths range from 1 to 10 metres, with an average of 5 metres, making it suitable for beginners. Access is available from both the shore and by boat, located approximately 100 metres from the coast. Conditions are generally mild, though visibility can fluctuate between 5 and 20 metres. Water temperatures vary significantly throughout the year, ranging from 15C in winter to 27C in August. Be aware of jellyfish, which are a known hazard in these waters.

Nave di Fuori is an offshore sea stack located 200 metres from the shore near Ischia. This reef site is accessible only by boat and is suited for intermediate snorkelers. The site features depths ranging from 5 to 8 metres, with an average depth of 6 metres. Conditions are generally characterized by mild currents. Due to the location, snorkelers should remain aware of boat traffic in the area. The site offers a distinct marine environment for those exploring the waters off the coast of Italy.

Cala Rossano is a sheltered sandy bay situated near the Porto Nuovo on Ischia. The site features calm, shallow waters, making it a suitable location for beginners and families. Snorkellers can explore the rocky edges that border the sandy bottom. Access to the water is via the shore. Water temperatures at this site vary throughout the year, ranging from 15C in the late winter and early spring months to 27C in August. The site provides a relaxed environment for those looking to snorkel in a protected coastal setting.

Punta Eolo is located at the northern tip of Ischia near the ruins of Villa Giulia. This site features a varied topography consisting of natural rock formations and archaeological remains. Divers and snorkellers can explore a depth range of 2 to 20 metres, with an average depth of 7 metres. The site is accessible by both shore and boat. Conditions include moderate currents and visibility ranging from 5 to 20 metres. Water temperatures fluctuate between 15C and 25C throughout the year. This location is suitable for intermediate divers and offers a high-quality experience for snorkellers.

Cala Battaglia is a volcanic reef site on the southern coast of Ischia, Italy, characterised by black volcanic sand. This site is suitable for intermediate snorkellers and offers both shore and boat access. Marine life recorded at the site includes common sightings of Turkish wrasse and various snails. Divers and snorkellers may also encounter uncommon species such as scorpionfish, wide-eyed flounder, crabs, painted comber, bream, white seabream, tompot blenny, sphinx blenny, and salema porgy. Water temperatures fluctuate between 15C in the winter months and 27C during August, providing a varied environment for observing local Mediterranean species.

Sconciglie is a reef site located 400 metres off the coast of Ventotene, Italy. This site is suitable for beginner divers, offering a straightforward profile with depths ranging from 15 to 20 metres and an average depth of 18 metres. Divers can expect mild currents and visibility between 10 and 30 metres. Access is exclusively by boat, which should be arranged through a local dive centre in Ventotene. Water temperatures fluctuate between 14 and 24 degrees Celsius throughout the year. Divers should maintain good buoyancy control to avoid contact with sharp coral and rocks present along the reef structure.

Parata della Postina is a reef site located 500 metres off the coast of Ischia, Italy. This location is defined by its unique geological formations, specifically semi-submerged tuff arches. The site is suitable for intermediate snorkellers, with depths ranging from 2 to 15 metres. Access is strictly by boat. Water temperatures fluctuate significantly throughout the year, ranging from 15C in the cooler months to 27C in August. Snorkellers should be aware of the presence of jellyfish in the area. The site offers a mild current, making it a manageable environment for those with appropriate experience.

Le Sconciglie is a reef dive site located off the coast of Ischia, Italy. The site is accessed by boat and is suitable for beginner divers. The topography consists of a reef structure with a consistent depth of approximately 10 metres. Water temperatures in this area fluctuate throughout the year, ranging from 15C in the late winter and early spring to 26C during the peak of summer in August. As a boat-based dive, it offers a straightforward underwater experience for those looking to explore the local reef environment.