At Golden Sands you will find the biggest party of the region every night in summer.
You will meet a lot of Romanians, Germans, Russians and Ukrainians.
If you want to party until sunrise, it is the right place for you.
From Varna take the bus (number 109, 209, 309 or 409) for about EUR 1,50 one-way.
Be careful as at Golden Sands you pay tourist prices for beer and so on.
In general, everything is twice as expensive as in Varna.
But is still cheaper than in Western Europe.