There is some good news on the tourism front today.
Switzerland has announced today that from tomorrow there will no longer be a requirement for anyone, from any country, to quarantine when arriving.
The trade off, however, is a stricter testing regime.
You will need to be vaccinated to enter.
In addition, a negative PCR test will be required.
You will also need to take a SECOND test, with could be a PCR or antigen / lateral flow test, between Day 4 and Day 7 of your holiday. There is a requirement to report the results of this test to the Cantonal authorities.
More generally, the Swiss authorites are also tightening the restrictions over social gatherings and requirements for Covid passes. Cafes, bars and restaurants will not be allowed to serve customers who are not seated, for example.
There is some additional information here although it is not the most easy to understand website. The key paragraphs are:
Entry into Switzerland: Quarantine rule lifted, stricter testing requirement
At its meeting, the Federal Council also amended the rules on entry. With effect from Saturday, 4 December, there will be no countries on the quarantine list.
In order to continue to prevent the new Omicron variant from entering the country as far as possible, a stricter testing regime will now apply for all arrivals into Switzerland. This testing requirement also applies to those who have been vaccinated or have recovered from the disease. In addition to taking a PCR test before travelling, a second test (PCR test or rapid antigen test) must be carried out between the fourth and seventh day after arrival. This test ensures that infected persons who have contracted the virus shortly before or during travel are detected.
Test costs must be borne by the traveller.
Non-vaccinated third-country nationals wishing to enter the Schengen area from countries or regions at risk will be refused entry to Switzerland for short-term stays without gainful employment of up to 90 days within a period of 180 days – apart from certain exceptions (hardship cases). This primarily affects tourism and social visits. The list of high-risk countries and regions is set out in Annex 1 of COVID-19 Ordinance 3. It is updated on an ongoing basis, taking into account the recommendations for the Schengen states issued by the European Commission.
Hopefully more information will come clear later about restrictions for children etc.