Discoteca Truxillo is the main disco in town, with a good mix of music and people. Entrance ranges US$1.50–2.50, depending on the night, but a stamp allows guests to leave, barhop, and come back. Thursday is karaoke night. Right on the beach is Arenas Discotec y Restaurante. A good local bar is Henry’s Place, with several pool tables. The restaurant/bar at the Casa Kiwi, outside of town on the road to Puerto Castilla (you’ll have to take a taxi at night if you’re not staying there), always has a group of young travelers drinking beers, playing pool, and swapping stories.
Trujillo [1]’s annual patron festival is held on June 24 in honor of San Juan Bautista. The festival lasts an entire month, with each neighborhood hosting a party on a different day. The hotels can get pretty busy, and drunks are plenty.
Links:
[1] http://www.moon.com/destinations/honduras/the-north-coast/trujillo