The Playas del Este beaches include a stretch of sand called Santa María. Lonely Planet says this area is heavily patrolled. It says:
If you come to Santa María with Cuban friends, expect the police to ask for their identification. If everything isn't in order, it's trouble. The heavy security presence makes this area safe and hassle-free, but it also eliminates much of the local color, and at times Santa María can be like a graveyard.I shot these video clips at Santa María when it had a bit more of a party atmosphere.
* Clip One
* Clip Two
* Clip Three
Here's a fourth clip, taken at Boca Ciega, and a fifth, taken at Tarara.