Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Estancia Tunnel offers a thrilling cold-water dive in the Beagle Channel near Ushuaia. The site features a dramatic underwater tunnel with rocky walls covered in colorful anemones and sponges. Expect strong currents and visibility around 10 meters. Look for king crabs, sea stars, and occasional sea lions darting through the kelp forests. The frigid waters demand a drysuit, but the unique topography and rich marine life make it worth the effort. Ideal for experienced divers seeking adventure in Tierra del Fuego's remote waters.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
South American Sea LionOtaria byroniaReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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