The most worthwhile place to stay for two nights near Interlaken is the scenery everywhere along the way. The lake is like milk, across a mountain, but it has several colour codes. It's incredible. If there's a need for Hiking to hike, climb to the top of the mountain with dear people. There are many local map instructions, many paths, picnic snacks, a quiet day, or Kayaks. Boating, the perfect quiet lake, is going to go again in October this year. It's so beautiful.