HINT:

As
$\displaystyle x^2+6x+3=(x+3)^2-(\sqrt6)^2,$

using Trigonometric substitution, set $x+3=\sqrt6\sec\theta$

or use $\#1$ of this

Integrate a division of polynomials
I can't seem to find information online about trains, buses, to take to get there etc. I would be travelling in from Stainach in Austria.

Is there a mountain station or similar that I can view it from?

e: I see from VMA's comment that I can go there via Grindelwald. What is the best way to get there from Stainach?

I'm thinking the train in the way of Stainach - Salzburg - Zurich - Bern - Grindelwald, but I can't get fares online for the Salzburg-Zurich-Bern portion. Anyone have an idea of the rough estimate of the fare?
