Getting there and getting away
British Airways and Air Bulgaria operate regular direct flights to Varna from Gatwick. Alternatively you can fly to Sofia with a cheap airline such a EasyJet and take a connecting flight from Sofia to Varna. Flights from Gatwick take approximately 3 hours, 15 Minutes.
Transfers to and from the airport can be arranged for you, alternatively you can take a taxi or a bus.
Getting there and getting away for the more adventurous
Fly to Bucharest in Romania and hire a car. Cheap flights are available with easyJet and others. The distance from Bucharest to Alen Mak is approximately 275Km (170 miles), you could take in a bit of Bucharest at the start or end of your visit. On the way you could stop at Rousse which is supposed to be well worth a visit, see http://www.ru.acad.bg/en/rousse.php or http://en.wikipedia.org/wiki/Rousse.
Fly to Constanta on the Romanian Black sea coast and hire a car. Flights are available with Ryan Air, though at the moment you have to change at Pisa. The distance to Alen Mak is about 160Kms (100 miles).