We are a group of 5 (3 over age 60) having an afternoon (20 June) and a full day (21 June) in St Moritz. We would like to do at least Pix Nair, Diavoleezza and a walk around Lake St Moritz. We would like to do a short hike (about 1-2 hour moderately easy walk that includes flower trails besides mountains and lake. We arrive around noon and leave on 22 morning. We stay 2 nights and therefore eligible for free passes. Pls advise in what order and how we should do this. Thanks in advance.