Mosquito Pier

Overview

Mosquito Pier (Muelle Mosquito, or Rompeolas) is a Vieques shore dive along a breakwater that the US Navy began in 1941 and halted in 1943; it extends about a mile. Its sheltered water reaches about 40 feet, and it is described as suitable for both beginners and experienced divers. Sea turtles, tarpon, nurse sharks, octopus and eagle rays are reported. The pier once handled Navy ordnance and is part of an underwater munitions site, so leave any objects undisturbed.^[1][2][3][4]

Site characteristics

• Pier^[1][2]

Habitat & marine life

• sea turtles^[1]
• tarpon schools^[1]
• nurse sharks^[1]
• octopus^[1]
• hawksbill turtles^[2]
• green turtles^[2]
• eagle rays^[2]
• tarpon^[1]

Marine life is what sources report having seen or commonly seeing — not a guarantee.

Access

• Shore dive^[1][2]

Experience & conditions

• Black Beard Sports (operator): “operator says suitable for beginners and experienced divers”^[1]
• Discover Puerto Rico (official destination marketing organization): “described as suitable for beginners and experienced divers; recommended for Discover Scuba”^[2]

Attributed descriptions from sources, not our rating. Conditions vary; your training, experience and the day’s conditions decide.

Wreck information

• begun by US Navy 1941 as seawall toward Roosevelt Roads (Ceiba); halted 1943; extends about a mile^[3]

Safety considerations

• unexploded ordnance — pier was used to load/unload Navy ordnance; part of underwater munitions site UXO 16; Navy site screening completed 2024^[4]
• former munitions offloading pier under Navy UXO investigation (site UXO 16.3); unverified, document not read — Lead only until the document is read.^[5]

Ocean conditions change daily. Dive within your training, plan with current local information and consider a local professional guide. Full safety note.

Depth reports by source