My first impression: He is currently on his driving license ...
Let's take a look at the area. Svalbard (Spitsbergen) has several glaciers there that calve at their demolition edges.
One of them is the Storbreen, where the hiking iceberg is located (is quite small, the lad, about 30 m).
The picture is from mid-April. Since there the day length is 20 hours and the glaciers melt strong.
GE specifies a height of 200 m for the location. This is certainly not correct but a height measurement from a time when the Storbreen continued to protrude into the water.
The water depth there is actually around 20 m. (See overlay)
Here it is stated that there are underwater currents at the glaciers in Brepollen ("The Glacier Bay").
So my theory is also that the broken chunk of ice drifts through underwater current and the submarine landform through relatively thin ice.
And the wind near the demolition edge could have helped as well.
The saber shape was probably created by tearing pieces from the ice on his way. ( "Crossguard")
Other pieces of ice in the area also drift, but little. Since the water depth is greater and the flow less.
Or an alien base on the run ...
Attachments:Drifter.kmz (686 B)
Bay of Brepollen.kmz (277.33 KB)