The bars and discos of Guanaja [1] are not for the meek, filled as they are with rough characters who are always ready for a brawl, but they can be a good time if you know how to look after yourself. There are discos in Bonacca [2], Savanna Bight, and Mangrove Bight [3].
The bars at Bo’s [4] and the other resorts can be fun places to spend the evening, and rather more relaxed.
The Pirate’s Den Bar (tel. 504/453-4308, 8 a.m.–2 p.m. and 5:30–9:30 p.m. daily) in Bonacca is a decent place to stop by for a beer in the afternoon.
Links:
[1] http://www.moon.com/destinations/honduras/the-bay-islands/guanaja
[2] http://www.moon.com/destinations/honduras/the-bay-islands/guanaja/bonacca
[3] http://www.moon.com/destinations/honduras/the-bay-islands/guanaja/elsewhere-the-island/mangrove-bight
[4] http://www.moon.com/destinations/honduras/the-bay-islands/guanaja/accommodations/dive-resorts