Diving in Bocas del Toro is quite popular, though their sites aren't particularly impressive. Sediment from the nearby rivers keeps the coral healthy, but it also reduces visibility, which on a bad day can drop to 10 meters. Reef sharks are the only truly impressive sea life. A one-tank dive should cost around $35, and two-tank dive around $50.
Bocas del Toro, Panama
Michael Karanicolas is awesome.