We fish on "trajectories": after having spot an approaching fish, we try to guess
where it will be in the next 4 or 5 meters and there we cast our dry fly.
If the intuition was right, 2 times out of 3 the fish is caught.
We soon begin to catch even graylings. Grayling fries have reached this place several years ago,
incidentally placed in a lot of stocked trout fries. Despite the unusual habitat, the grayling
has very well adapted to the climate of this alpine lake.