bartusek wrote:2. I need a SIM card with Internet (~250MB) I don't know Belgian phone operators. Which one should I choose ?
For 15 euro, BASE or Belgacom/Proximus will sell you a pre-paid SIM card with 250 MB + 90/120 min of calls and/or 300 SMS. It is possible to find cheaper (10 euro) but in specialised shops that you don't find at the airport.
1.Which transport should I choose for transfer from airport to Brussels ?
From Charleroi airport to Brussels City or Brussels airport?
The easiest way from Charleroi airport to Brussels City (South railway Station) is the bus, every 30 minutes:
http://www.charleroi-airport.com/en/pas ... index.html
From there you can take a train to Brussels Airport.
3. Which way to travel to the airport for Spotting is better - rent a bike or bus ?
Again, do you mean CRL or BRU ? From the city, there are numerous ways to go to the BRU (Brussels Airport): train (the fastest), buses (the cheapest: De Lijn or STIB/MIVB). It all depends from where you depart.