Giant Doris
Swim, Snorkel, Dive, See, Meet, Watch the Giant Doris
The Giant Dory is the largest of the Mediterranean Dories, reaching 20 cm in length.
This nudibranch often grows in Posidonia meadows and on rocky bottoms, up to 60 m deep, especially around sponges, hydrozoans, and gorgonians.
When disturbed, the Giant Doris contracts and curls into a ball. It has subcutaneous vesicles containing a toxin around its head and in certain parts of its mantle, which it uses to defend itself against possible predators.
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Hypselodoris picta
Macro
Hypselodoris picta, Felimare picta
Food
The Giant Doris is carnivorous and uses its teeth like a file.
Breeding
The nudibranch is hermaphrodite and has organs of both sexes. To mate, they position themselves one above the other looking in the opposite direction to fertilize each other. The Giant Doris is oviparous, which means it lays fertilized eggs. The eggs are aggregated in the form of orange and white spiraling ribbons. After hatching, the juveniles drift with the current.
Dive centers
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Explorasub
France
- Cargese

Explorasub Dive Centre is located in Cargèse, Corsica, halfway between the gulfs of Ajaccio to the south and Porto to the north. Discover the jagged red and ochre granite volcanic coastline with the mountain plunging into the sea. The 30 dive sites are spread between three rocky points topped by 17th-century Genoese towers. Nearby, 5 beautiful sandy beaches invite you to relax. Ideal for walks in a preserved nature, in the middle of creeks and maquis. The Explorasub club, with its shaded terrace, is located at the marina, next to the U Rasaghju restaurant, popular for its Corsican song evenings. Free parking is available nearby. The access to the premises, the sanitary facilities, the embarkation quay, and the boat is adapted to people with reduced mobility, with a freshwater fountain available. Rental equipment is disinfected after use and equipment are available for sale on-site.
Possibility to change in a changing room, to store your belongings in a dedicated bin, to take a hot shower on your return. No handling of cylinders, which are already on the platform, stored in rows. The Explorasub center offers SSI and FFESSM training courses, from Level 1 to Level 3. Specializing in children's diving, Explorasub is also the ideal place for a first dive. Equipped with 2 bottle racks, ladders, and 2 seats for handicapped people, the semi-rigid boat Charles IV, with a capacity of 24 divers, allows you to reach the most remote sites in 5 to 25 minutes to discover the Mediterranean fauna.
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- Access for disabled people
- Between 20 and 30 dive sites
- fast boat
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Espace Mer
France
- Hyères
 
The Espace Mer diving center is located in Hyères, at the Tour Fondue, on the Giens peninsula, opposite the island of Porquerolles. The Espace Mer diving school offers PADI and FFESSM training courses, from initiation to instructor. Espace Mer organizes freediving courses at sea, from April to November, around the islands of Hyères. You will learn techniques to improve your freediving performance in a variety of environments such as cave and tunnel diving and wreck exploration. Come aboard Espace Mer's boats, whatever your level, either as a group or individually, to visit the most beautiful wrecks in the Mediterranean, the islands of Hyères, and the Port-Cros National Park.
There are many activities available for non-divers. Take a day trip to the Golden Islands onboard the Brigantin, a traditional sailing boat. Jump into the water with fins, mask, and snorkel for snorkeling trips. Take the opportunity to discover the Mediterranean fauna. Kayak along the Tour Fondue coast and around the Petit and Grand Ribaud islands, opposite Porquerolles Island. The best thing to do is to go on the boat Mousquemer to have beautiful encounters with dolphins and whales.
At sunrise, after a quick 30-minute sail, the boat is positioned above an underwater pit. With binoculars in hand, you can observe blue and white dolphins, bottlenose dolphins, pilot whales, sperm whales, and fin whales, depending on the currents, the weather, and the season. Sometimes turtles come to the surface to breathe. Thanks to Espace Mer, benefit from a personalized service to get to the islands of Porquerolles, Port Cros, and Le Levant on board a private taxi boat. Oh yes, please note that Espace Mer also provides logistics for film shoots and filming. [+]
- Located close to the dive sites
- Dolphin watching
- Nautical activities
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Subkro
Spain
- Ametlla de Mar

The Subkro Diving Center in Tarragona is located in two different ports, Port de Torredembarra and Port de Tarragona. Enjoy comfortable facilities located 20 meters from Miracle Beach, with hot showers and the opportunity to have a drink against a postcard backdrop, including the beach, port, and Roman amphitheater. Subkro also receives its divers in L'Ametlla de Mar. Subkro is open daily from April to November and in winter by appointment, from 10 a.m. to 2 p.m. or from 10 a.m. to 5 p.m. The instructors offer SSI (Scuba School International) training courses ranging from Open Water Diver to Divemaster.
Study with Subkro instructors the different specialties such as deep diving, navigation, and night diving. Explore with shore dives offered by Subkro from Miracle Beach, located in the center of Tarragona, a so-called urban beach because city dwellers easily go there; Aquarium, located towards the lighthouse; at Cap Salou in the small cove Cala Reguerot del Claveguer located next to the Salou lighthouse; Vaporet where the remains of a shipwreck are located, whose chimney rises in a profusion of damselfish.
In the crevices, discover in the light of your lighthouse, groupers and conger eels. Sunfish (Mola mola) have been spotted here. Diving adventures with Subkro are not lacking. Go hiking along the Route de Ronda (Salou), on the GR92 which crosses L'Ametlla de Mar, with your fins, mask and snorkel in your backpack. Explore the underwater depths of the calas with Subkro and relax blissfully in their translucent waters. This package is ideal for spending quality time with friends or family. Subkro's other wildlife diving package is unique in the world. Immerse yourself and snorkel among schools of hundreds of bluefin tuna with Subkro. Book your accommodation and diving package with Nautic Parc. [+]
- Shore diving
- Wrecks
- Functional boat
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Diamond Diving
France
- Golfe Juan

Diamond Diving is located in Golfe Juan, between Juan Les Pins and Cannes. You can get there either by the A8 freeway, or from Nice airport (30 mn drive), or from Golfe Juan/Vallauris train station (1-minute walk). This center is a PADI 5*IDC resort that is open every day of the week, from April to mid-November. During winter, trips are organized on demand especially for groups of 10 to 16 divers.
During the season, count on two daily trips, in the morning at 8:45 am with a return at 11:30 am. In the afternoon, we meet at 1:45 pm and return at 5 pm. After the dive, you can take advantage of the hot showers and toilets in the port. Reserve your place on one of the two 16-person RIBs. Day trips are organized in small groups in the bay of Golfe Juan and around the Lerins Islands. [+]
- PADI 5 star IDC Dive Resort
- Located close to the dive sites
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C.P.S.M Centre de Plongée de Saint Mandrier
France
- Saint Mandrier

The diving school CPSM of Saint-Mandrier is located on the seaside, in the bay of Sablettes, at the exit of the bay of Toulon. Open on weekdays from April to October, the CPSM of Saint-Mandrier's boats depart at 9:30 am and 2:30 pm and on weekends, at 10:30 am only. In July and August, the first departures of the speedboats with 15 divers each, take place at 8:30 am.
At the CPSM of Saint-Mandrier, you park your car in a large free public parking lot, next to the center and you benefit from a nice infrastructure on the spot, with a classroom equipped with a video projector, a store selling equipment, a changing room with hot showers and toilets.
From the C.P.S.M Centre de Plongée de Saint Mandrier, you have fast and direct access to the most interesting dive sites of the area, including the wreck of the Aroyo, with a 10 minutes drive. Non-divers can enjoy the sun and sea on the sandy beach, a few meters from the center. Further on, games of bowls are played in specially designed areas in the shade of the pine forest. [+]
- Located close to the dive sites
- Functional boat
- Meeting after diving
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