Wedged between France and the Netherlands is Belgium, the land where locals speak either Dutch or French. I only learned about this after meeting French-speaking Belgians. Brussels, or Bruxelles, is the capital for most tourists to visit. Yet so far I have only found myself visiting a different city for some friends. Nevertheless, the culture is the same throughout the country, even spilling to the Netherlands due to their history.
Belgium appears to be the least interesting country in western Europe, but people do visit for the desserts and the alcohol. Some of the best drinks are produced here, and one surely must try the well-known Belgian waffles in their authenticity.
Expenses in Belgium can be moderate. As with any western European country, you will find cheap and expensive goods depending on where you go. There are not many hostels, so you would need to budget more than usual for accommodation. Public transport may be expensive if you use it frequently.
Be prepared for the warmth and the chill of four seasons. Depending on the month, you should pack what you need to cater to the weather. Summer is the easiest with light dressing. Snow is not common and the landscape is mostly flat, but it may still get well down to freezing point.
As of November 2021, unvaccinated travellers are only able to enter Belgium for valid reasons. For the vaccinated, entry requirements vary depending on the colour code assigned to the country or region they are travelling from, and whether they are a resident of Belgium. For more information, I use Safety Wing's Borderless.