Safety · Destination Guide
San Andrés
Reef walls, a shallow wreck, real apnea training and the Sea of Seven Colors.
Safety · Destination Guide
Reef walls, a shallow wreck, real apnea training and the Sea of Seven Colors.
San Andres has supervised water activities but also important operational unknowns. Use recognized trained providers, confirm legal marine access and demand a written emergency plan. CORALINA's protected-area zoning and no-feeding/no-handling rule apply across recreational activity types. DIMAR requires marine traffic safety procedures for diving. The October 2026 hospital intervention makes it especially important to confirm real, current accident management, recompression referrals and evacuation coverage, not infer that local treatment capacity is sufficient.
Ask your provider to confirm dive-site clearance and permission, surface marker or Alpha flag, boat lookout, oxygen, first-aid competence, VHF communications and weather cancellation thresholds. DIMAR's La Piramide safety notice tells operators to communicate start and end operations on VHF channel 16 and use the Alpha flag; this is a vessel/operator obligation, not a substitute for individual signaling. Follow personal depth and no-decompression limits. Do not penetrate Blue Diamond or cave-like areas without appropriate technical/overhead training and explicit permission. Freedivers need independent qualified safety coverage, no solo training, and no hyperventilation. If symptoms suggest decompression illness, lung injury or blackout-related complications, stop diving, activate local emergency services and obtain qualified advice.
The San Andres Departmental Hospital exists but Colombia's Health Ministry reported an October 2026 intervention and service/equipment concerns, while the ombudsman cited emergency and specialist referral shortfalls in September. This guide could not verify a currently functioning hyperbaric chamber on San Andres, its staff or treatment availability. A competent dive operator should verify medical routing and possible evacuation to the mainland directly, before taking customers. In life-threatening emergencies, contact local emergency response (Colombian 123) first and then DAN's 24/7 hotline +1-919-684-9111. Check oxygen administration, insurance evacuation authorization and flight-after-diving guidance.
Wind, swell and boat traffic
ProColombia cites November-January stronger winds. DIMAR sets boat signaling and navigation rules near La Piramide, while day-to-day conditions may change plans.
Tropical cyclone and wet-weather disruptions
IDEAM monitors Atlantic/Caribbean cyclones June-November; historical October-November rain is high. Boats and parks can close, so hold flexible land days.
Protected-area access is not universal
Seaflower zoning, CORALINA park controls and DIMAR navigation restrictions mean a marketed site may require permission or be closed.
No-touch and no-feeding wildlife rule
CORALINA bans baiting, feeding and manipulating protected marine wildlife, including rays. Older visitor promotions of feeding are not current permission.
The Seaflower biosphere and marine protected-area system has multiple zones. CORALINA describes enforcement of no-take and no-entry restrictions under its area-management rules; consult authorized local zoning and posted directions. Wildlife baiting, feeding and handling are prohibited by CORALINA Resolution 611 of 2022. CORALINA also prohibits direct contact on regulated ray-viewing tours. Keep fins off coral, do not anchor on reefs, remove no wildlife, and use approved park docks and walking paths. Respect local Raizal communities and use responsible locally licensed guides.
Do Not Do This
Avoid entering when wind, swell and boat traffic. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| Colombia national emergency line | Police, medical and emergency assistance first contact | 123 | Emergency service line; local call handling and coverage should be verified on arrival |
| Divers Alert Network (DAN) | International dive medical emergency consultation after contacting local EMS | +1 919 684 9111 | 24 hours daily, year-round |
| Colombian Coast Guard | Maritime emergency assistance through national coast guard line | 146 | Local government lists this line; vessel or mobile access should be checked locally |
| DAN World Spanish emergency support | Spanish-language diving emergency consultation | +52 557 100 0540 | DAN World lists emergency contact; confirm regional dialing and service |
| San Andres maritime traffic and distress | Marine VHF emergency and diver-vessel coordination | VHF Channel 16 | Maritime distress frequency for equipped vessels; not a telephone number |