I have a hike for you from Axalp to the lake called Hinterburgseeli. Axalp (1535m) is located in Bernese Oberland, overlooking Lake Brienz.

Drive to Axalp and park your car here. Alternatively, take bus 155 from Brienz.

Here you can find the Outdooractive route. I recommend doing this hike counterclockwise because that's how we did it, and I really wanted to visit the Hilten restaurant for coffee with a magical view. I loved it so much and would visit every time.

On a hot day, you can swim in the lake.

Details of the hike:

6.1 km round trip, 3 hours, 358m up and down.