You can access the large monthly view of the calendar by clicking on the rectangular calendar icon at the end of the current week on the Reservations page. As soon as you click it, a monthly calendar appears in which you can easily navigate to all the dates.
Alternatively, you can also go to the monthly view of the calendar, which you will find on the Dashboard. You will also find a calendar symbol there.
Click on it to open the monthly view, in which you can quickly jump forward many months.
One more tip: If you have entered public holidays or special occasions in the daily notes, you can also use the search field to search for one of these days. For example, if you have entered “Christmas” in the daily note on Dec 25t. and search for "Christmas" in the search field, you can jump directly to that date.