After the ascent with the Hochjoch Bahn, you still have the option to take a toilet break at the mountain station or refresh yourself with a snack or drink at the Kapellrestaurant.
Then follow the trail to the left uphill, past the Alpe Vorderkapell, and you will find yourself on the Naturkräftepfad, which features 8 different interactive stations on the topic "the elements in the mountains." From the penultimate station "Floating Stone" it is only a few minutes to the Surblies viewpoint – these additional elevation meters are definitely worth it.
From now on, the trail gently slopes downhill past the last station, the Floßen, back to the Kapellrestaurant or the Hochjoch Bahn mountain station.