Air: The main airport is Otopeni (Henri Coanda) Airport in Bucharest. You can fly to Sibiu and Cluj from a few European cities, eg Dortmund, but for most people, Bucharest is the international airport.
From there you can drive or take the train:
Taxi transfer: If there are several of you travelling together, you can be collected at the airport and taken straight to Magura by taxi for about £100-£150, which is not bad when split between you, and is the minimal possible hassle. I’ve found this link online, but I have no idea how reliable they are – if you’ve used them, do please let me know.
http://www.foxtransfer.eu/from-zarnesti-to-sibiu-airport.en.html (They will also take you from Bucharest to Zarnesti, Brasov etc).
The local cab companies in Zarnesti are
Edy: tel 0751 339 114; 0729 259 995; 0746 363 157
CBR: tel 0268 222 111; 0728 223 111; 0742 233 111
If you want to spend a night or two in Bucharest, coming or going, then the Hello hotel is a brand new budget hotel (€35 in 2012) very close to the Gara de Nord (2 mins walk). It’s open 24hrs, the rooms are stylish and perfectly comfortable, all en suite, and unless you want to spend all day in the hotel, it’s perfect for a place to sleep while you explore the city. The people on reception all speak good English, too. There’s no restaurant, but there’s a bar and a fridge full of cakes and sandwiches, and an espresso machine. NB Don’t opt for the breakast – at €5 it’s really not worth it. Have a coffee there and head for a cafe in the centre.
I mention Hello only because I’ve stayed there twice due to late flights. If you know of other good place to stay in Bucharest do please let me know and I’ll add them to the page.
Something to consider – if you’re in Europe, you could fly with easyJet or similar to Budapest (Hungary), stop over for a day or so to exploit the spas and the city life, then catch the sleeper train straight to Brasov (it’s en route to Bucharest, a major international train route).