Symi, a stunning island in the Dodecanese, is not just famous for its beautiful architecture and lively culture; it’s a true paradise for divers. With its crystal-clear waters, rich marine life, and diverse dive sites, Symi caters to divers of every skill level—from beginners taking their first plunge to seasoned experts pursuing thrilling underwater challenges. In this guide, we will dive into 25 of the best dive sites around Symi, categorized into wreck dives, cave and cavern dives, reef and rock formations, wall and drop-off dives, shallow and beginner-friendly sites, and advanced and deep dives.

Best Wreck Dives in Symi

Poseidon Wreck

The Poseidon Wreck is one of Symi’s top dive sites. Resting at about 30 meters deep, this vessel hosts a rich variety of marine life, making it feel alive with movement and color. Divers often spot schools of fish swirling around the wreck, and the coral that has claimed the site offers a unique visual experience. Expect to see vibrant grouper, snapper, and even the occasional sea turtle here.

Supply Ship Wreck

Located at approximately 25 meters, the Supply Ship Wreck remains less explored, making it ideal for divers seeking a quieter experience. Here, the ship is coated in coral and shadows playful fish such as the colorful parrotfish and lively nudibranchs. This site is rich in storytelling, allowing divers to engage with the underwater world while discovering history.

Old Anchor Wreck Site

At a depth of 20 meters, the Old Anchor Wreck Site is a favorite for history buffs. This site features an ancient ship’s remains, including a large anchor that now serves as a home for various fish species. Divers can encounter wrasse, sea bream, and even moray eels hiding among the shipwreck’s structures.

Cave & Cavern Dives

St. George Cave

St. George Cave offers an exceptional diving experience filled with stunning rock formations. The inviting sunlight creates a magical atmosphere, illuminating the diverse marine life that inhabits the cave. Expect to see colorful anthias and curious octopus hiding among the rocks.

Nanou Cave

Nanou Cave is a splendid choice for experienced divers. This site requires navigating narrow passages but rewards adventurers with breathtaking views and unique rock formations. Here, divers often find schools of small fish darting through crevices and unusual soft corals, demonstrating the area’s rich biodiversity.

Agios Vasilios Cavern

Agios Vasilios Cavern is a spectacular site combining open water and cavern diving. Inside its colorful expanse, divers can find a lively ocean community home to vibrant sea fans. The striking contrasts of light and shadow make it an unforgettable experience.

Hidden Cave at Pedi Bay

The Hidden Cave at Pedi Bay is a secret dive location accessible only by boat. Its crystal-clear waters allow for outstanding visibility, enhancing the thrill of diving into its unexplored depths. This secluded spot is frequented by schools of silver fish and playful crabs that scuttle among the rocks.

Best Reef Dives & Rock Formations in Symi

Nimos Reef

Nimos Reef is celebrated for its rich marine diversity and vibrant coral formations. Here, divers can spot an array of species, including beautiful clownfish and bright wrasse. This site is excellent for making underwater photographs that capture the brilliance of life below the surface.

Sesklia Islet Reef

At Sesklia Islet Reef, divers will enjoy some of the clearest waters in the area. This dive site supports a diverse marine environment, making it perfect for both novice and experienced divers. Expect to see schools of vibrant damselfish and swaying anemones.

Diavates Rocks

Diavates Rocks features stunning underwater geology that includes unique formations and plenty of hiding spots for various marine species. Divers often find themselves captivated by the wonder of the underwater landscape as they navigate through the rocky terrain.

Faneromeni Reef

Faneromeni Reef is known for exquisite colors and a diverse ecosystem. The visibility here is often around 30 meters, allowing divers to appreciate the sheer beauty of the corals and their fishy companions. This site is perfect for those who love capturing underwater photos.

Agia Marina Reef

Agia Marina Reef boasts exceptional underwater visibility and is known for its vibrant marine life. It’s an idyllic spot for divers looking for a peaceful, picturesque experience.

Best Wall & Drop-off Dives in Symi

St. George Wall (below the towering cliffs)

St. George Wall is a challenging dive site ideal for experienced divers. With cliffs that drop steeply into the depths, it offers a thrilling experience while encountering thrilling marine life like barracuda and larger pelagic fish.

Nimos Wall

Nimos Wall presents another thrilling dive opportunity. It features steep underwater cliffs that attract a wide variety of marine species. Expect to see vibrant fish darting in and out of rock crevices.

Panormitis Wall

Panormitis Wall is known for its impressive rock formations and diverse marine life. Divers will find plenty of features to explore and many fish species to observe, making it an exciting destination.

Diapori Strait Walls

Diapori Strait Walls offer a stunning dive experience, characterized by impressive underwater rock formations. As divers explore, they may encounter various marine life, making this site an unforgettable dive.

Shallow & Beginner-Friendly Sites in Symi

Pedi Bay House Reef

Pedi Bay House Reef is perfect for beginner divers. With shallow waters teeming with marine life and easy access from the beach, it’s a great place to gain diving confidence while spotting beautiful fish and sea stars.

Nos Beach Dive Site

Nos Beach Dive Site offers calm waters and is easily accessible, making it an excellent spot for newcomers to the sport. Schools of small fish and swaying seaweed create a perfect atmosphere for first-time underwater explorers.

Marathounda Bay

Marathounda Bay is another serene site ideal for beginner divers. The clear, shallow waters are conducive to learning, and divers can enjoy spotting colorful nudibranchs and various small fish.

Agios Nikolaos Bay

Agios Nikolaos Bay combines clarity with abundant marine life, providing a fantastic environment for new divers. Easy entry and exit points make it even more convenient for beginners.

Agia Marina Bay

Agia Marina Bay is another great choice for beginners, offering a rich underwater scene with plenty of fish. The friendly environment helps new divers feel comfortable as they learn to explore.

Advanced & Deep Dives in Symi

Strongyli Islet (deep reefs)

Strongyli Islet is a more challenging dive site, featuring spectacular deep reefs that attract impressive marine life. Here, experienced divers can encounter larger species like tuna and possibly even dolphins.

Diavates Deep Side

Diavates Deep Side is known for its challenging conditions, making it perfect for skilled divers. This is a place where the thrill of discovery meets the beauty of unexplored depths. Unique fish species and delicate coral are often observed here.

Nimos Channel (currents + depth)

Nimos Channel presents an exciting challenge with its strong currents and depth. This challenging environment requires skill but rewards divers with encounters with large pelagic species in a breathtaking setting.

Blue Hole at Symi

The Blue Hole at Symi is awe-inspiring, known for its unique underwater features and vibrant marine life. This site is a perfect capstone for advanced divers ready to immerse themselves in the stunning beauty awaiting in the depths.

Dive Deep into Exploration

Symi is a treasure trove of dive sites that cater to all divers, regardless of experience. From wreck dives that tell captivating stories to stunning reefs filled with life and color, the island offers an unforgettable underwater experience. Whether you are a novice ready to take your first plunge or a seasoned diver on the hunt for adventure, Symi has something tailored just for you. Grab your gear, and dive into adventure!