The festival celebrates its 10th birthday in July and we've come up with 10 reasons why it's the best festival outside the UK.
1. It's abroad!
We'll start with the obvious shall we. NOS Alive is situated on the Portuguese coast at Algés, just a stone's throw away from Lisbon, so your visit doubles up as a holiday too. Leave your rain mac, wellies and disappointment of missing out on a Glastonbury ticket at home!
2. Shade from the sun
If sun isn't exactly your best friend you need not worry. The music doesn't begin around 5pm local time, so you can catch The 1975 or Years and Years as the sun sets without being frazzled.
3. Short walks
Forget mentally preparing yourself for the treks between each stage, it takes no longer than five minutes to walk from one side of the site to the other so those inevitable clashes might be made that bit easier!
4. Radiohead return
They're the band back on everyone's lips, and with a mere handful of festival appearances cropping up over summer this is one too good to miss! The band played back in 2012 when the festival was called 'Optimus Alive' but unfortunately their return means that weekend and Friday day tickets have sold out rapidly
5. The continuing rise of Wolf Alice
This time last year Wolf Alice had just released their debut album. One year on and the British band are headlining the second stage of the festival, The Heineken Stage.
6. Record store
Blown away by one of the acts playing and can't wait to get hold of their music? An onsite record store will have you covered, stocking everything from the bands playing to other classics.
7. Good food, better prices
There's no need to go trudging through litres of mud to find floppy bacon butty. NOS Alive has a whole food court filled with places to eat and cheap alcohol so you can save a few euros for your daytime activities.
8. Two Door Cinema Club make a come back
9. Clubbing past the bands
10. Sunday siesta
NOS Alive runs from the Thursday to Saturday, so once you stagger back at 4am on Sunday morning, it's still the weekend and you've got the rest of the day to pop down to the beach and work off that hangover.