Ostrillon - Mar del Plata
The Ostrillon, a lighter vessel sunk decades ago, sits in a surprisingly shallow 4 metres just off Mar del Plata. We love this site because it’s so accessible, an easy shore dive, and it’s genuinely different from anything else in the area. Descending, you’re greeted by the wreck's skeletal remains, surprisingly intact given its age and depth. The metalwork is encrusted with anemones and sponges, a vibrant splash of colour against the rusted hull. Schools of silversides often shimmer around the superstructure, parting as you glide through, while the occasional cuttlefish might be spotted camouflaged on a beam. It’s an ideal spot for new wreck divers or anyone wanting a relaxed, long bottom time. We’d suggest going at high tide for the best visibility, which can average around 5-8 metres here. The Ostrillon offers a tangible connection to Mar del Plata's maritime history, a quiet, colourful exploration within easy reach.
- Location
- Mar del Plata, Argentina, South America
- Coordinates
- -34.535610, -57.907360
- Type
- wreck
- Maximum Depth
- 4m
Best Time to Dive in Mar del Plata
The warmest water temperatures in Mar del Plata occur in January, averaging 26.7°C. The coolest conditions are in July at 11.0°C.
Monthly Water Temperatures
- January: 26.7°C
- February: 25.8°C
- March: 24.1°C
- April: 20.3°C
- May: 16.3°C
- June: 13.0°C
- July: 11.0°C
- August: 12.2°C
- September: 14.8°C
- October: 18.2°C
- November: 22.3°C
- December: 24.8°C
Nearby Dive Sites in Mar del Plata
- 192 - B - 4m (wreck)
- 201 - A - M.O.P. - 8m (wreck)
- 245 C - 7m (wreck)
- 252-C - 5m (wreck)
- 256 B - 3m (wreck)
- 325 C - 6m (wreck)
- ABucear - Centro de Buceo
- ABucear - Scuba Diving Center
- ADMIRAL GRAF SPEE - 8m (wreck)
- A.H.V.R NO.4 - 3m (wreck)
- ALBA - 5m (wreck)
- ALDOSIVI - 2m (wreck)
- Aldykir II - 1m (wreck)
- Alejandro Marcos B - 7m (wreck)
- ALFA II - 1m (wreck)
Nearest Dive Centres to Ostrillon
- ABucear - Centro de Buceo
- ACUATIKOS
- Alfa Buceo - ["PADI"]
- AM DIVE
- Amphibio
- Aquabaires Buceo - ["PADI"]
Marine Life in Mar del Plata
Home to 33 recorded species including 19 reef fish, 7 sharks & rays, 3 whales & dolphins, 2 other, 1 crabs & lobsters, 1 sea snails & nudibranchs.
Notable Species
- South Atlantic Elephant-seal (Mirounga leonina) - Whales & Dolphins
- Bluewing Searobin (Prionotus punctatus) - Reef Fish
- Sperm Whale (Physeter macrocephalus) - Whales & Dolphins
- Porgy (Pagrus pagrus) - Reef Fish
- American Elephantfish (Callorhinchus callorynchus)
- Bangamary (Macrodon ancylodon) - Reef Fish
- Elf (Pomatomus saltatrix) - Reef Fish
- Silverside (Odontesthes incisa) - Reef Fish
- Filetail Fanskate (Sympterygia lima) - Sharks & Rays
- Atlantic Lookdown (Selene vomer) - Reef Fish
- Blueback Mullet (Mugil liza) - Reef Fish
- Smallnose Fanskate (Sympterygia bonapartii) - Sharks & Rays
- Kingfish (Menticirrhus americanus) - Reef Fish
- American Harvestfish (Peprilus paru) - Reef Fish
- Ronco (Micropogonias furnieri) - Reef Fish
- Chilean Angel Shark (Squatina armata) - Sharks & Rays
- South-American Silver Porgy (Diplodus argenteus) - Reef Fish
- Apron Ray (Discopyge tschudii) - Sharks & Rays
- Eyespot skate (Atlantoraja cyclophora) - Sharks & Rays
- Moray (Muraena helena) - Reef Fish
Recommended Packing List for Ostrillon
Based on average water temperature of 19.1°C, currents 3 cm/s.
- Wetsuit (3-5mm) - comfortable for 19°C water
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories