Safety · Destination Guide
Atlantic reefs, cliff caves, and easy Algarve road trips from a sunlit harbor town
Updated Dec 13, 2025 • 22 sources
Algarve diving is generally straightforward, but it is still Atlantic water: surge, changing visibility, and boat traffic are the main hazards. Plan conservatively, dive with reputable operators, and keep emergency numbers accessible.
The Algarve region has private hyperbaric medicine capability, and the local medical system can coordinate care and referral based on the case.
Atlantic surge at cave mouths and walls
Surge can pin divers into rock or make exits difficult. If the sea state is up, skip caves and choose protected shore sites.
Boat traffic in peak season
Tour boats and kayaks concentrate near cliff caves. Use an SMB for scuba ascents and a float/flag for snorkeling and freediving.
Cold exposure and cramps
Even on hot days, Atlantic water can feel cool over long sessions. Bring appropriate wetsuit thickness and consider a hood in colder months.
Visibility swings after storms
Expect reduced visibility after swell and rain, especially on shallow sites. Build flexibility into your plan and follow local guidance.
Do Not Do This
Avoid entering when atlantic surge at cave mouths and walls. Confirm local briefings before committing.
| Contact | Role | Phone | Availability |
|---|---|---|---|
| European Emergency Number | Police, fire, medical emergency dispatch | 112 | 24/7 |
| Capitania do Porto de Lagos (Autoridade Maritima Nacional) | Maritime authority and local harbor coordination | 282 788 464 | Business hours; emergencies via 112 |
| Grupo HPA Saude (Hospital Particular do Algarve) | Hospital services and hyperbaric medicine capability (Alvor/Portimao area) | +351 282 420 400 | 24/7 (hospital), call for triage |
| DAN Emergency Hotline (Divers Alert Network) | Dive medicine advice and assistance coordination | +1-919-684-9111 | 24/7 |