Mysterious island in Argentina

Mysterious Universe has a couple of articles on a strange feature described as an island in the Parana Delta in Argentina:
http://mysteriousuniverse.org/2016/08/th...hat-moves/
http://mysteriousuniverse.org/2018/05/re...n-et-base/

It appears to be an elliptical piece of land within a slightly larger circular piece of water, though the "island" is in contact with the surrounding land on one side, so it appears as a crescent of water. Allegedly the island is floating on the water and gradually moving about. This movement is said to be visible on Google Earth (which I don't have), but it's not clear whether the people who have written online articles about it have checked this for themselves or taken it on trust. Some of the wilder speculation portrays it as the entrance to an underground UFO base (rather like the swimming pool on Tracy Island  ).

Some people tried to raise $50,000 through crowdfunding for an expedition, but the appeal failed.

It's difficult to believe there aren't people in the vicinity who know exactly when and why this feature was constructed, but a quick Google search produces only questions and speculation, not answers. If anyone is sufficiently intrigued, it would be interesting to know whether Google Earth really shows that the "island" has moved around in the past few years.

[Pollux]

If anyone is sufficiently intrigued, it would be interesting to know whether Google Earth really shows that the "island" has moved around in the past few years.

Here is some recorded tracks of its movement over time, and it seems to bounce around inside the circle quite a lot.;

Mysterious Universe has a couple of articles on a strange feature described as an island in the Parana Delta in Argentina:
http://mysteriousuniverse.org/2016/08/th...hat-moves/
http://mysteriousuniverse.org/2018/05/re...n-et-base/

It appears to be an elliptical piece of land within a slightly larger circular piece of water, though the "island" is in contact with the surrounding land on one side, so it appears as a crescent of water. Allegedly the island is floating on the water and gradually moving about. This movement is said to be visible on Google Earth (which I don't have), but it's not clear whether the people who have written online articles about it have checked this for themselves or taken it on trust. Some of the wilder speculation portrays it as the entrance to an underground UFO base (rather like the swimming pool on Tracy Island  ).

Some people tried to raise $50,000 through crowdfunding for an expedition, but the appeal failed.

It's difficult to believe there aren't people in the vicinity who know exactly when and why this feature was constructed, but a quick Google search produces only questions and speculation, not answers. If anyone is sufficiently intrigued, it would be interesting to know whether Google Earth really shows that the "island" has moved around in the past few years.

There's nothing mysterious or supernatural, aliens are not involved .This is a floating patch of vegetation being moved around by water similar in mechanism to what are know as snow or ice circles. This is not directed at you.  I'm always dismayed at either fabricated mystery for monetary gain on an ignorant public or worst habitual self imposed stupidity  humans often exhibit. Case in point see the YouTube channel: Americans are ignorant and proud. Ignorance though is not exclusive to Americans.

Here is some recorded tracks of its movement over time, and it seems to bounce around inside the circle quite a lot.;

Thanks for these links. It's certainly moving around, then.

There's nothing mysterious or supernatural, aliens are not involved .This is a floating patch of vegetation being moved around by water similar in mechanism to what are know as snow or ice circles.

It looks too regular to be natural, though. Is it just that the whole area is a floating marsh, and someone has gone and sawed through the vegetation in a big circle - presumably fairly recently - leaving the "island" in the middle to be moved about (and squashed) a bit by the wind or water currents?

It looks too regular to be natural, though. Is it just that the whole area is a floating marsh, and someone has gone and sawed through the vegetation in a big circle - presumably fairly recently - leaving the "island" in the middle to be moved about (and squashed) a bit by the wind or water currents?

It is entirely natural. I'm certain it is floating aquatic vegetation. Here's a naturally formed ice circle. Likely it is a marsh. Didn't the article say this circle was located within this rivers delta?

https://youtu.be/hUxH_-KePuA

I have to wonder why you have not searched "ice circle" and why your reply insinuates something other than a natural explanation?

It is entirely natural. I'm certain it is floating aquatic vegetation. Here's a naturally formed ice circle. Likely it is a marsh. Didn't the article say this circle was located within this rivers delta?

https://youtu.be/hUxH_-KePuA

I have to wonder why you have not searched "ice circle" and why your reply insinuates something other than a natural explanation?

Looking at the Wikipedia page on "ice circles", there seem to be two or three suggested mechanisms for their formation, but I don't see how any of them would explain the formation of a circular floating island in a continuous sheet of vegetation. Which of the ice circle mechanisms do you think would apply here?

Looking at the Wikipedia page on "ice circles", there seem to be two or three suggested mechanisms for their formation, but I don't see how any of them would explain the formation of a circular floating island in a continuous sheet of vegetation. Which of the ice circle mechanisms do you think would apply here?

If you want to question this circle is not natural go ahead. I don't know and don't care.

I would have thought a circular shape would be an almost inevitable shape, as opposed to say triangular or square. I can see non-circular shapes being an outcome if all the forces (wind or water current) are consistently in a limited range of directions (e.g. back and forth motion in a tidal estuary).

If you want to question this circle is not natural go ahead. I don't know and don't care.

I just don't think this could be formed by the mechanisms suggested in the Wikipedia article on ice circles. I'll be happy to be persuaded otherwise, but I need something more than "They're both circular."