Ask divers on São Miguel which site they would choose if they could only dive one, and many will name the Dori. It is a Second World War Liberty ship lying on a sandy bottom off the south coast of the island, close to Ponta Delgada. The stern sits only 9 metres down, the deepest part is around 21 metres, and over six decades the hull has become one of the busiest artificial reefs in the Azores.
This guide covers the ship's story, the rules that protect it, what you will see underwater, and how a Dori trip with Azores Sub works from the marina in Vila Franca do Campo.
The Dori was built in the United States as one of the Liberty ships, the large fleet of cargo vessels mass-produced between 1941 and 1945 to keep the Allies supplied during the Second World War. More than 2,700 were built, and today only two remain afloat, both as museum ships.
According to the Azores regional decree that protects the wreck, the ship was originally named Edwin L. Drake and took part in several military missions during the war. The official Azores diving guide adds that it was one of the Liberty ships involved in Operation Overlord, the Allied landings in Normandy in 1944.
After the war the ship was sold and renamed. In January 1964, sailing under the Liberian flag as the Dori, it began taking on water near São Miguel and was brought towards the coast off Ponta Delgada, where it sank about 800 metres from shore, in front of São Roque. The ship is around 130 metres long and has rested there ever since.
Since 2012 the wreck has been the centre of the Parque Arqueológico Subaquático do Dori, created by Regional Regulatory Decree no. 12/2012/A of 8 May 2012. The park is a square 800 metres on each side, centred on the wreck off São Roque, and is marked at the surface by a buoy.
Inside the park:
In practice, this means you look and photograph, but do not touch, take or disturb. The fishing ban is also the reason the site is so full of fish: the Dori works as a small marine reserve as well as a heritage site.
| Feature | Details |
|---|---|
| Top of the stern | about 9 m |
| Bow (deepest point) | about 20-21 m |
| Average depth | about 16 m |
| Bottom | sand |
| Currents | usually weak |
| Water temperature | about 16 °C in winter to 24 °C in late summer |
| Level | suitable for all certified divers; also good for snorkelling over the stern |
The usual route starts at the stern, the shallowest and best-preserved part of the wreck, which still has a clearly recognisable shape. From there divers work towards the bow, passing large sections of structure, pipes, stairways and the ship's boilers. The propeller and rudder are favourite spots for photographers.
Because the maximum depth is around 21 metres, the Dori fits an Open Water Diver certification and makes a good first wreck dive. Advanced divers have more time at depth to explore the bow section. The shallow stern also makes it one of the few wrecks in the Azores worth seeing from the surface with a mask and snorkel on a clear day.
Sixty years underwater have turned the steel into a reef. The hundreds of pipes and gaps in the structure shelter moray eels, octopuses and nudibranchs, so a slow look into the openings pays off.
In open water around the wreck you can expect almaco jacks, yellowmouth barracudas and axillary seabreams moving between the propeller and the rudder, and the boilers are often surrounded by schools of white seabream (Diplodus sargus cadenati). On good days, shoals of pelagic fish pass over the stern.
For underwater photographers, the combination of a large, easy-to-read wreck, good light in the shallow sections and dense fish life makes the Dori one of the most rewarding sites on the island. It is also a popular night dive.
The wreck can be dived year-round when the sea allows, because it lies close to shore on the sheltered south coast. The main diving season in the Azores runs from about June to October, when the water is warmest (around 22-24 °C in late summer) and the sea is generally calmer. In winter the water drops to about 16 °C and Atlantic swell cancels more trips, so plan a buffer day and a thicker wetsuit.
Azores Sub is based at the Marina of Vila Franca do Campo on the south coast of São Miguel. The Dori is one of the dive sites the centre visits, about 40 minutes by boat from Vila Franca.
A typical trip looks like this:
The same stretch of coast offers other good sites much closer to Vila Franca, such as the Baixa do Frade (7-25 m) and Arcos da Caloura (5-18 m), with natural arches, and the dives around the Ilhéu de Vila Franca do Campo nature reserve. A pack of dives lets you combine the Dori with these coastal reefs over a few days.
The Dori is a straightforward dive, but it is still a wreck. Do not enter enclosed parts of the structure unless you are trained for wreck penetration, keep away from sharp metal edges, and watch your buoyancy so you do not stir up the sand.
São Miguel has a hyperbaric chamber at the Hospital do Divino Espírito Santo in Ponta Delgada, which also serves Santa Maria. In an emergency, call 112.
The Dori combines history, easy conditions and lots of marine life in one dive, and it is protected so it should stay that way. If you are diving in São Miguel, it belongs on your list.
Contact Azores Sub to book a dive trip to the Dori from Vila Franca do Campo, or ask the team which dates and sites fit your stay.
Sources: Decreto Regulamentar Regional n.º 12/2012/A, of 8 May 2012 (Diário da República), which creates the Parque Arqueológico Subaquático do Dori; Visit Azores Dive guide, "Dori" dive site page and "Diving on Second World War Shipwreck" page (depths, history, marine life); Visit Azores Dive, "Hyperbaric Chambers"; Azores Sub (dive sites and departure point).