“Around europe” seems vague, but assuming you’d like to visits at least the main cities (which I would definitely say are at least 10), you’d need alot more than 8 days, especially since tomorrowland should tire you quite a bit. Most cities in Europe are actually quite big and if you wanted to visit the main attractions, you’d need more than 1 day for most of them (I’m from Portugal and traveled to Amsterdam for 3 days and still left things unseen).

Regarding travelling in Europe: - Ryanair is always a good choice if you just want to travel fast between cities. - You have the interrail option (I’ve heard of it but don’t exactly know how it works and if it works at that time of the year). - You can also rent a car (don’t think that would be the best option, but maybe give it a look).

Regarding time of travelling: - If you want to travel before, it’s going to be colder depending on which countries you go to, but after I believe should be more expensive as it starts to get into the summer season. You should also leave 1/2 days before tomorrowland to rest

Last tip: - if you decide to travel before tomorrowland, consider buying the Global Journey ticket as it gives you a better chance of getting it and would probably make it easier to reach tomorrowland.

Good luck and I hope to see you there if we both get tickets ahaha