1. Harder Kulm
Every town needs a hill you can see from everywhere, and for Interlaken that hill is the Harder Kulm. At 1,321 meters, it sits directly north of town and looks straight down at the two lakes on either side. The funicular from Interlaken Ost takes about eight minutes. The view at the top is the one they put on every postcard: Lake Thun to the west, Lake Brienz to the east, and the Eiger, Mönch, and Jungfrau lined up in a row behind them.
The restaurant terrace at the summit has the best Interlaken attractions view you'll find without spending a full day hiking. There's a suspension bridge over a wooded ravine that most visitors skip once they see the main panorama platform. Don't. It puts you out over the forest canopy and changes the whole perspective. Morning is quieter than afternoon, and the light on the mountains before 10 AM is better than anything you'll see later.
The Harder Kulm technically belongs to the Emmental Alps rather than the high Bernese Oberland, which means it gets less snow and stays open from April through November.