I was very lucky last summer, I booked hotel Udacha Studio for around
11 euros per day for two people. Which means it was around 6 EUR/ night for me! This week was lovely, it was warm beginning of September. Not so crowded anymore, also the highest temperatures were gone but the sea was still warm. Ladies enter clubs for free, men have to pay a little.
It's worth to choose Bulgaria, because the weather is perfect, it's a lovely country and half cheaper than in western countries. For example in Barcelona I paid around 9-12 euros for a dish, while in Bulgaria 2-6 euros.
I was going everyday to the clubs to dance and sing, also the cost of the drinks is affordable.
Action Park was fun
And all water sports...