Beach going, but it's too crowded, better to go to Nesebar and Ravda beaches. Go parti and dance at the many pubs and dancing bars and clubs, at night, and than go sleep it off at the beach during the day.
Fondest memory: The only thing there is to party until you drop. Too much noise and drunks, so as too many people just getting laid. No fond memories of Sunny Beach.
Favorite thing: Hi i am an expat living in Bulgaria for the last two years i am based in varna which is an hours drive from sunny beach but visit friends in that area. The weather at the moment is variable which is normal for spring but have already had some days topping the 25 degrees mark, by May the weather is usually a lot more settled and is lovely and warm, maybe cooler in the evenings but daytime should be good enough for a decent tan!
...change it up at the Crown Exchange. You get great rates, they are the only safe exchange offices in Bulgaria (other than banks), they are absolutely everywhere and you can change up your money as you go!
DO NOT FALL FOR THE TRAP OF GETTING YOUR MONEY CHANGED UP ANYWHERE ELSE OTHER THAN CROWN, YOU WILL BE ROBBED BLIND!!!
The Beach is actually the main goal for most people who visit Sunny Beach. Surprisingly by its name...
Fondest memory: The beach was very nice and clean, and the water didn't consist of that much salt as in the Medetheranian Sea.
Favorite thing: Sunny Beach is north of Burgas and next to Nesebar. It's about 2 hours south of Varna. The Black Sea coast is worth investigating so rent a car or take a bus.