Sinterklaas arrives in The Netherlands this Saturday from Spain, as is tradition (read more at English Wikipedia). After his arrival Dutch children start counting down to December 5, as that evening they can open their presents. Minor gifts are given (usually left in shoes) between the arrival of Sinterklaas and December 5.
Albert Heijn is getting into the party with their own version of an advent calendar with mini chocolates:

Every day from November 13 through December 5 has a little window to open (in random order, which as an adult I find a bit annoying). Aftellen tot pakjesavond = countdown to gifts evening (a literal translation).
We’ll see if things proceed as planned. The nationally televised arrival of Sinterklaas can go ahead because almost all of it is taped in advance and the city he arrives in doesn’t actually exist, due to the pandemic. Normally he arrives to much fanfare and thousands of young kids cheering him on in person or watching from home.
Regional arrivals have started to be cancelled, with Utrecht being the first big city to cancel theirs (official website in Dutch). A decision for The Hague hasn’t been made yet, but the signs informing travelers of bus and tram re-routing on Saturday are still in place, and inside the trams an automated message plays saying there will be re-routing on Saturday. It will probably go ahead as the arrival of Sinterklaas at the harbor in Scheveningen now requires tickets and they are restricting the number of tickets offered. At the moment the parade through The Hague is also still on. We’ll see.
For fun, here’s a look at the first (and only) Sinterklaas parade I went to back in 2013. Psssst: Americans, please don’t be shocked at the use of blackface. It is slowly being phased out in most cities.