Safety · Destination Guide
Protected bay diving, quick logistics, and one of the easiest mixed water-and-surface trips in the Dominican Republic
Updated Mar 25, 2026 • 22 sources
North Coast diving rewards travelers who respect weather, site selection, and protected-area etiquette. Sosua Bay offers a practical buffer, but this is still an Atlantic coast where winter swell and tropical systems can reshape the day's plan. Safety is mostly about honesty: choose the site that fits the sea state and your actual comfort, not the site name you hoped to log. Conservation is equally important because Sosua's reefs sit inside an active marine-protection and restoration context.
Many Sosua dives are easy enough for Open Water divers, but not every named site belongs in the same bucket. Shallow reef sites are forgiving; deeper walls require cleaner buoyancy, stronger situational awareness, and more deliberate gas planning. Expect site changes during north swell, winter squalls, and any tropical-weather period. Use an SMB on advanced or busy-traffic dives, stay close to your guide in shallow mixed-use areas, and avoid forcing a second dive if seasickness, fatigue, or poor equalization show up early. Cruise passengers should choose conservative profiles and operators with disciplined return logistics.
Emergency care is strongest in Puerto Plata and along the Sosua-Cabarete corridor. Call 911 for urgent assistance and keep POLITUR / CESTUR in your phone for tourist-zone support. Centro Medico Bournigal is the major private hospital on the North Coast, and Centro Medico Cabarete is useful for the Sosua side of the corridor. Hyperbaric medicine is available in Puerto Plata through Diagnostico Medico Mayans / OXIFLOW RD, but chamber readiness can change, so confirm current decompression support with your operator, insurer, and emergency contacts before the first dive day.
North swell can change the site board quickly
The biggest planning mistake here is assuming a favorite site is guaranteed. Winter squalls and cold fronts can add surge, reduce comfort, or cancel exposed wall dives even when the day still looks sunny on land.
Tropical weather matters more than hotel forecasts
From June through November, and especially in September and October, make marine forecasts part of your daily routine. A calm beach at breakfast does not automatically mean an offshore or road-heavy excursion should proceed unchanged.
Boat traffic is real on the shallow sites
3 Rocks and other popular bay areas are shared by scuba, snorkel, and recreational boat traffic. Surface markers, calm ascents, and disciplined spacing matter, especially for snorkelers and newer divers.
Advanced walls are not casual second dives
Profiles such as Ray Point start around 18 m and continue far deeper. Treat them as deliberate dives with nitrox, conservative gas planning, and honest comfort about free descents and current.
Sosua Marine Park was created to manage the bay through zoning, rules, and sustainable use. That means visitors should dive and snorkel with low-impact habits: no touching coral, no kneeling on the reef, no collecting shells or historical objects, no wildlife feeding, and no careless finning over restoration areas. Mooring buoys exist to reduce anchor damage, and conservation groups such as Fundacion Ecologica Magua are actively involved in reef stewardship and restoration. The best operators talk about these rules before splash time. If yours does not, ask.
Do Not Do This
Avoid entering when north swell can change the site board quickly. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| Emergency Services | National emergency dispatch | 911 | 24/7 |
| POLITUR / CESTUR | Tourist police and visitor assistance | +1 809-200-3500 | 24/7 assistance line |
| Centro Medico Bournigal | Major private hospital in Puerto Plata | +1 809-586-2342 | 24/7 emergency support via hospital |
| Centro Medico Cabarete | Clinic serving the Sosua-Cabarete corridor | +1 809-571-4696 | Call ahead for current emergency coverage |
| Diagnostico Medico Mayans / OXIFLOW RD | Hyperbaric medicine contact in Puerto Plata | +1 809-586-4635 | Call ahead to confirm chamber status and medical coordination |