On the west side of Golfo de Nicoya Isla San Lucas lies opposite the large town of Puntarenas on the mainland. Crossing the 3.8NM to the town can be hazardous in a dinghy as the strong northerly winds can kick up a stiff choppy sea. The large bay on the east side of the island is shoal close to the beach but is a very calm anchorage.
The island had been a penal colony from the time of the conquistadors in the 16th century and served as Costa Rica’s Alcatraz until it was finally abandoned in 1991. The prison is deserted and the buildings are open to look around. Around seven hundred inmates were incarcerated for life in seven cell blocks ringed a semicircular courtyard underlain by a huge cistern with two holes in the roof. The graffiti on the cell blocks features religious images or naked women as well as a host of other things that the prisoners were longing for.
Tourist boats arrive from the mainland for a tour of the prison, otherwise you will have the bay to yourself. The haunting calls of the howler monkeys, the eerie buildings and the accumulation of human anguish make this a memorable anchorage.
Approaches
On entering the bay favour the southern side and head towards the dock in the southeast corner. A wreck lying in the centre of the bay is visible at low tide.
Anchorage
Anchor off the dock in 2.5m on a sandy clay bottom with good holding. Dinghy in to the steps on the side of the dock or land on the beach where there is a rubbly path up to a track which leads to the dock and prison.
Facilities
None. Visiting the prison is a fascinating experience. There are also several tracks on the island for hiking.