Blog & News
Discover the best tips, travel guides, marine conservation news and secrets of the underwater world.
South Korea, Jeju: temperate Pacific diving and the haenyeo women divers
Jeju is South Korea's largest island, lying south of the peninsula in the East China Sea. A subtropical destination with temperate corals, modern Korean wrecks, and the haenyeo culture — women freedivers harvesting shellfish on breath-hold, UNESCO heritage since 2016. Korean diving largely unknown in the West, with a genuinely distinct cultural identity.
EquipmentCCR and mCCR rebreathers: operation, maintenance and safety
They recirculate exhaled gas, scrub CO2 with soda lime, and inject O2. mCCR fixed flow, eCCR adjusts in real time. Mandatory pre-dive check: watertightness, 3 O2 cells, scrubber, alarms. Divesoft, rEvo, JJ-CCR.
EcologyIrresponsible behaviour with marine fauna: why not touching is vital
NOAA: touching removes the protective mucus layer from fish skin. UK: tourist fined £1,370 for touching a turtle. Social media incentivises risky behaviour. Dive centres turn a blind eye to avoid losing clients. Report to the authorities.
TravelCambodia, Koh Rong: Southeast Asia's least explored dive frontier
Cambodia has 443 km of coastline on the Gulf of Thailand, with two main diving islands: Koh Rong and Koh Rong Samloem (Sihanoukville Province). It's the least explored diving destination in Southeast Asia: limited infrastructure, low prices (15-22 € per dive), reefs in intermediate condition. Easily combined with Angkor Wat cultural tourism. Best suited for divers seeking low budget and off-the-beaten-track adventure.
EquipmentCanister lights for cave diving: battery life, power and lighting systems
4,000-5,200 lumens, 6-10 degree beam. Lithium reaches 7-8 hours at full power. LED eliminated the risk of HID bulb breakage. Always a primary canister light plus 2 independent backup lights.
TrainingTechnical diving training: TDI, IANTD, GUE and how to choose an agency
TDI and PADI Tec are the most widespread. IANTD Thinking Diver since 1985. GUE unified configuration and team focus. Prerequisites: fine buoyancy, no-fin propulsion, bubble control, lost-visibility drills.
TravelEl Hierro in winter: whale sharks, sunfish and the Mar de las Calmas reserve
Marine reserve since 1996. 17-22°C December-February, visibility 30 m. Whale shark August 2024 (9 m). Sunfish August 2025. Submarine volcano Bob. Off-season: smaller groups, less pressure.
TravelCroatia, Biševo Blue Cave: Europe's most photogenic cave
Modra Špilja (Blue Cave) on Biševo is probably the most photographed sea cave in Europe. A natural chamber where sunlight passes through an underwater entrance and refracts into a surreal cobalt-white glow that fills the entire interior. Photos never do it justice. Day-trip destination from Vis or Split, reachable by guided dive or snorkel, with specific conditions for seeing it at its best.
TravelSri Lanka, Trincomalee: whale sharks and WWII British wrecks
Sri Lanka is a 65,610 km² Indian Ocean island south of India. Trincomalee, on the east coast, holds one of the world's finest natural harbours, a WWII Royal Navy base and a migration corridor for blue whales and whale sharks. Pairs well with Sinhalese cultural tourism (Anuradhapura, Sigiriya, Galle) and British wrecks sunk in 1942.
Marine LifeJellyfish in the Mediterranean: proliferation, causes and what divers need to know
Semi-enclosed Mediterranean: concentrations do not disperse. Rising water temperatures, overfishing, eutrophication. Pelagia noctiluca and Velella now year-round. Salps and ctenophores interfere with fishing and power plants.
TipsSilent hypothermia: why shivering underwater is a red flag
Shivering inside your wetsuit reads as uncomfortable but manageable. It's actually the last warning before the body enters a dangerous spiral. Mild hypothermia impairs judgment before core temperature drops, and underwater that means bad decisions at the worst possible moment. Knowing how to read cold is more important than learning to tough it out.
HealthEar equalization in diving: essential techniques to avoid injuries
Ear barotrauma is the most common injury in diving. Learn to equalize with Valsalva, Toynbee and when you should not dive.
TipsScams in buying and selling diving equipment: how to protect yourself
Guardia Civil 2025: rise in cyber fraud on marketplaces. Buyer claims item not received. Seller sent fraudulent WhatsApp link. Defective dive equipment is a life risk. INCIBE: never leave the platform's internal chat.
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