From Oberissalm follow the well signposted hiking path for around 1hr15minutes to arrive at the Franz-Senn Hütte. The hike to the Franz-Senn Hütte is initially quite strenuous but soon eases off and the second half of it is mainly a pleasant traverse.

After taking some refreshment at the hut head due north and then follow an unrelenting path that climbs up into increasingly wild-feeling mountain terrain. Eventually the path leads to a slightly flatter area beneath and east of the Rinnensee lake. From the flat area onwards the path is much rockier and passes through a series of boulder fields. The Rinnensee itself is stunning and looks appealing to swim in...The reality may be less enjoyable than the prospect of it!

Once above the lake the path gets steeper and steeper through ever rockier terrain. The path crests the Rinnenspitze's north ridge about 50 metres from the summit and all that is left is a fun scramble to the top. There is a pretty major drop on either side of the ridge so whilst there's nothing technical, it's well advised to keep concentrating all the way to the summit!

The view down to the Lisenser Ferner glacier and the peaks surrounding it is fantastic, and the Rinnenspitze also offers a great panorama across the many peaks that can be climbed (or ski toured) from the Franz Senn Hütte.

Having soaked it all in, return via the ascent route all the way down to Oberissalm.