Most of the earth is covered with water.
In this water there are many islands, the largest of which we call continents.
Many of these islands/continents have lakes in them.
Some lakes have islands in them.
At least one of these islands has lakes in it.
Some of these lakes have islands in them.
According to Google Maps.
Where is this?
Can this be taken farther? Naturally occurring. no digging little moats on the beach.
What is this called? Some form of Geographic topology?
Do other people worry about this?
Think I found where you mean in the Northern Hemisphere, not the Southern Hemisphere. There could be a puddle on that tiny island but nothing big enough to qualify as a lake.
So, I guess that means the size of the island is the limiting factor, in that it must be larger than the minimum area used to define a lake. Of course, that definition varies, so it would be dependent on the local laws that define a lake.
There is an island in Lake Huron (north side) That has an island with lakes that have islands. Lake Manitou, Kagawong and Mindemoya. Probably some others out there in the world...
if you want some other options:
dgm, the 3 lakes in Manitoulin Island in Lake Huron with islands in them are what was looking at.
Vulcan point in Crater Lake on Vulcano Island in Lake Taal on Luzon (PHI) also qualifies. Very Cool.
Much further north....................
https://www.livescience.com/33679-world-largest-island-lake-island-lake-island-google-earth.html
Island, Lake, Island, Lake, Continent, Ocean
51?ø32'42.84"N
68?ø49'3.42"W
There might be a river involved.