Wrecks·14 October 2026
Exploring Wreck Diving Adventures
Discover the stories, history and marine life beneath the surface
A shipwreck is more than a vessel resting on the seabed. It is a window into the past, a place where maritime history, underwater exploration and marine life come together.
Surrounded by historic shipping routes across the Indian Ocean, Sri Lanka offers wreck divers a remarkable variety of sites to explore. From shallow wrecks suitable for recreational divers to deep, technically demanding shipwrecks, each offers its own character, history and underwater discoveries.
At Serendib Scuba, we bring these experiences together through carefully selected day dives and liveaboard adventures along Sri Lanka’s west and east coasts.
Colombo: A Remarkable Collection of Shipwrecks
Just a short boat journey from Port Colombo lies a concentration of shipwrecks offering a wide range of diving experiences. Some are scattered across the seabed, while others retain recognisable sections of their original structure, machinery and cargo.
For recreational divers, the MV Thermopylae Sierra provides a shallower wreck experience, its masts until 2026, were visible above the water. More experienced divers can explore sites such as the Pecheur Breton, the Clarke Wreck and the MV Chief Dragon, where the remains of the vessels have become habitats for marine life.
For qualified technical divers, the Colombo wreck field offers a different level of exploration. The SS Perseus, a first World War wreck with its substantial hull, boilers and steering gear, is a striking underwater sight. The Battery Barge, Wallet Wreck and Black Coral Wreck offer further opportunities to explore deeper sites.
At approximately 57 metres, the SS Worcestershire also a first World War wreck is among the deeper wrecks featured in our Colombo technical diving programme. Its collapsed structure, large engine and remaining sections provide an intriguing glimpse into the vessel’s former life.
With wrecks at different depths and varying levels of preservation, Colombo rewards divers who enjoy discovering the details of a ship’s structure and observing how the underwater environment gradually transforms it.
The East Coast: Wrecks from a Time of War
Sri Lanka’s eastern waters offer an extraordinary connection to the events of the Second World War.
On 9th April 1942, Japanese carrier aircraft attacked Allied shipping and naval vessels off Ceylon. Several of the wrecks associated with this period now lie beneath the waters off the East Coast, preserving a sobering chapter of the island’s maritime history.
The SS Sagaing, once a cargo vessel carrying a remarkable assortment of supplies, offers a shallower wreck experience. The SS British Sergeant, a large tanker lying in two sections, presents a very different scene.
Deeper sites include HMS Hollyhock and the Athelstane, whose stories are closely connected to the events of that day. Their remains now lie among the marine life of the eastern seabed.
The East Coast also holds the wreck of the PBY-5A Catalina flying boat, which ditched in December 1943. At around 42 metres, it offers a distinctive alternative to shipwreck exploration, with recognisable elements of the aircraft remaining underwater.
These sites are not simply places to explore. They are underwater historical records, connecting divers with the people, vessels and events that shaped this part of the Indian Ocean.
HMS Hermes: A Dive into Naval History
Among Sri Lanka’s most significant wrecks is HMS Hermes, resting off Batticaloa at depths of approximately 42 to 53 metres.
The world’s first purpose-designed aircraft carrier, Hermes was sunk by Japanese aircraft on 9th April 1942, alongside her escort HMAS Vampire. Today, she rests on her port side and is recognised as a war memorial.
Her scale, history and depth make this a particularly compelling technical diving experience. Rather than treating the wreck as a single destination, our dedicated Hermes Adventure allows experienced technical divers to spend multiple days exploring different sections of the vessel.
This is a demanding dive in an exposed environment, with currents that can run at 1–2 knots. It is intended for appropriately qualified and experienced technical divers who meet the adventure’s stated requirements.
For those who have the training and experience, the Hermes offers an opportunity to explore a remarkable piece of naval history while approaching the wreck with the respect it deserves.
Beyond the Wrecks: Marine Life and Underwater Discovery
Although history draws many divers to shipwrecks, the underwater environment is part of the attraction.
Over time, wreck structures can provide shelter and surfaces for marine growth. Depending on the site and conditions, divers may encounter schooling fish, groupers, barracuda, stingrays, soft corals and other marine life.
Colombo’s deeper wrecks offer encounters with structures and marine habitats that differ from those found on the East Coast. Further south, the waters off Mirissa, Unawatuna, Galle and Hikkaduwa combine selected wrecks with sandstone and boulder reefs.
On the East Coast, wreck exploration can also be combined with reef diving, including the waters around Trincomalee and Pigeon Island Marine National Park.
Each coastline brings a different experience. The sites available, visibility, currents and marine life vary with location, season and conditions — all part of what makes exploring Sri Lanka underwater so rewarding.
Choose Your Wreck Diving Adventure
Whether you prefer a day on the water or a multi-day expedition, Serendib Scuba offers different ways to explore Sri Lanka’s shipwrecks.
- Colombo Recreational Wreck Diving: Discover selected wrecks with depths and conditions matched to your certification and experience.
- Colombo Technical Wreck Diving: Explore deeper wrecks, including the SS Worcestershire, SS Perseus and other sites in the Colombo wreck field.
- WWII Adventure: Follow the stories of historic shipwrecks and the Catalina flying boat along the East Coast on a multi-day liveaboard expedition.
- HMS Hermes Adventure: Spend dedicated diving days exploring one of the Indian Ocean’s most compelling technical wrecks.
- Southwest Adventure: Combine selected shipwrecks with the distinctive reefs and marine environments of Sri Lanka’s southern and southwestern coastline.
The right adventure depends on your certification, logged experience, interests and the conditions expected during your visit. Our team can help you identify an itinerary that suits your diving background and the type of exploration you want to experience.
Dive the History. Discover Sri Lanka.
Wreck diving brings together adventure, discovery and a connection with the past. Sri Lanka’s underwater heritage offers all three, from accessible recreational sites to deep wrecks that demand advanced planning, specialist equipment and technical expertise.
Explore these remarkable sites with Serendib Scuba, and discover a different side of Sri Lanka beneath the waves.
Exceptional wrecks. Private yachts. Bespoke diving journeys.
Ready to explore? Discover our [Diving Adventures] and [Liveaboard Expeditions], or contact Serendib Scuba to plan your next wreck diving journey.
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