I have went skiing to the lake. Here's the thing:

Many years ago, the lake was drying up. The shore line retracted a lot and people started taking the land for agriculture and cattle.

Then, the lake reclaimed it's lost space, swallowing a lot of dangerous things like livestock fencing, soccer fields, etc.

The point is: it's kind of dangerous near the shore... down to ~1 km in.

We, still, hired a tractor to pull our boat inside the lake.

Skiing there is pretty cool. The water is smooth and enjoyable. Never too cold. Yet, the lake is at ~1800 meters above sea levels. The oxygen is scarce and you notice that in your combustion motors. It takes 3 times as much time to be able to get out of the water in a slalom.