La Parguera and the Southwest Coast

Before Boarding

• Ask the operator for a weather, sea-state and site choice briefing, plus the current DRNA access rules. Use NWS AMZ745 and CARICOOS as additional primary marine-condition checks.
• Confirm certification and any specialty prerequisites. A reef slope used for courses is not equivalent to Blackwall, Canyons or Hole in the Wall.
• Check boat rescue plan, passenger count, oxygen, communication equipment and the identity of an in-water leader. No chamber or offshore evacuation time has been verified for this guide.
• Use a buddy, remain within training and planned depth, maintain buoyancy well above coral and follow the operator's surface-marker and recall signals.
• Avoid overhead penetration, deep swim-throughs or technical decompression without dedicated certification, mission plan and explicit permission. Paradise expressly reports no longer entering the deep namesake Hole in the Wall swim-through.

On the Surface

• Do not freedive alone. A single partner watching from a boat is not automatically a qualified freedive safety system.
• Treat mangrove channels and popular cays as working boat areas. Obey designated swimmer zones and use appropriately supervised shallow water.
• Do not conduct an independent bio-bay swim or nighttime snorkel without confirmed legal authorization and professional risk controls.
• For a single no-decompression scuba dive, DAN suggests at least 12 hours before flying; for repetitive or multiday no-stop diving, at least 18 hours. Longer is prudent and mandatory decompression requires more conservative planning.

For a serious diving incident, stop diving, contact Puerto Rico emergency services on 911, seek immediate professional assessment and contact DAN at +1-919-684-9111 for 24-hour diving medical guidance. The guide did not verify a currently functioning local recompression chamber, guaranteed transport arrangement, helicopter schedule or particular hospital's round-the-clock hyperbaric capability. Do not imply that a chamber is nearby. Ask the boat captain in advance for the receiving emergency department, evacuation handoff location and communications plan. For suspected decompression illness, do not fly or self-transfer to altitude; follow emergency medical direction.

Divers and non-divers should consider heat illness, dehydration, seasickness, stings, wet-weather road conditions and accessibility. In the event of storm warnings, alter or cancel the outing rather than relying on a sheltered-looking harbor. DRNA beach notices describe water-quality alerts and should be checked after rain or reported contamination.

Protected Habitat

The La Parguera reserve includes mangroves, seagrass meadows and coral reefs under DRNA management. Coral collection, injury to coral, harassment of sea turtles or marine mammals and damaging anchoring practices are restricted. Use marked mooring points or lawful sandy bottom where the skipper confirms that anchoring is allowed. Never attach lines or boats to coral, mangrove roots or seagrass. Reserve authority; compiled applicable restrictions.

Low-impact Visits

• Maintain neutral buoyancy and do not stand on living reef, remove shells or feed wildlife.
• Keep fins, propellers and anchors out of fragile seagrass and coral.
• Keep distance from turtles, rays and sharks. Presence is not a promise of encounter or proof of water safety.
• Carry litter back to shore, reduce unnecessary lights in sensitive nocturnal habitats and use insect products responsibly around the bay.
• Respect exclusive swimming and boating areas at Cayo Caracoles; DRNA separated them in an earlier notice, but verify the present layout.
• DRNA published an October 2026 request for removal of invasive Xenia umbellata coral patches in La Parguera. Visitors should report unusual growth through local environmental channels, not attempt removal themselves.

Bioluminescent Bay

Glow varies with biological and lunar conditions. Some tourism materials indicate that swimming may occur, but current tour operators cite a 2023 administrative order prohibiting it. The original full order was not available for independent review in this research. Treat water entry as restricted pending direct DRNA confirmation, and never book a snorkel dive into the bay on the assumption that permission exists. The day-use reef/cay rules are separate.

Water Quality

The DRNA 2026 303(d) assessment lists enterococci and other impaired-water parameters for coastal segments near La Parguera. This is a multi-year regulatory assessment, not a real-time verdict on an individual beach. Get fresh site-specific sampling notices or guidance before swimming, especially after runoff or strong rainfall; assessment evidence and beach notice channel.