# Ice Diving Silfra Cave in Iceland is Earth's Coolest Dive By Hjortur | Published 2007-03-16 | World Source: Trend Hunter, https://www.trendhunter.com/trends/earths-coolest-dive-silfra-in-iceland References: [dive.is](http://www.dive.is/) & [dive.is](http://www.dive.is/Diving_Iceland.php?page=Silfra) Some say it's the closest thing to space walking you will ever get. Silfra is a river in Iceland so clear that if it wasn't for the bubbles, you would think you were floating in just air. The water is melted glacial water that has been filtered through the lava bed for years and no matter if it is 20°C below or above zero outside, the water temperature is always 2-4°C (just above freezing point). Because of the cold, there is no live in the water and therefore it is so clear - with visibility over 100 meters!!! And you can drink as much off the water as you like while diving (don't overdo it though) :) Silfra is actually a crack between the continental plates, situated in the middle of Thingvellir National Park in Iceland. This is the only place in the world where you can see the continental plates seperate at the average speed of 2 cm a year. The crack is always widening, and you are invited in. This is an out of this world experience and has repeatedly been voted [one of the 10 coolest diving spots](https://www.trendhunter.com/trends/icelandair-boasts-activities) on earth. Now if you are really into diving, you can get [cave dives and deep diving](https://www.trendhunter.com/trends/dive-computer1) in Silfra as well. Check out www.dive.is for more info. ## Trend Insights (Trend Hunter) - Score: 4.5/10 - Popularity: 80% | Activity: 47% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America, Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [World](https://www.trendhunter.com/world) > [Travel](https://www.trendhunter.com/travel) ## Key Themes ### What Makes This Trend Stand Out - **Clear Water Diving:** Opportunity to develop innovative diving equipment and gear that enhances visibility in clear water environments. - **Extreme Cold Diving:** Potential for creating specialized diving suits and equipment to withstand extremely low water temperatures. - **Plate Diving:** Opportunity to offer unique diving experiences in locations where continental plates separate. ### Sectors Adopting This - **Diving Equipment Manufacturing:** Disruptive innovation potential in developing advanced diving gear for clear water and extreme cold diving. - **Outdoor Adventure Tourism:** Opportunity to create specialized tours and experiences centered around unique diving sites. - **Geological Tourism:** Potential for developing educational and immersive diving experiences at locations where continental plates separate. ## Related on Trend Hunter - [North Iceland Lagoons](https://www.trendhunter.com/trends/north-iceland-geothermal-vacations.md) - [Adventure-Seeking Iceland Flight Programs](https://www.trendhunter.com/trends/iceland-flight-program.md) - [Diving-Friendly Smartphone Cases](https://www.trendhunter.com/trends/divevolk-seatouch-4-max-platinum.md) - [View-Expanding Scuba Masks](https://www.trendhunter.com/trends/scuba-masks.md) - [Bespoke Scuba Diving Drysuits](https://www.trendhunter.com/trends/diving-drysuit.md) - [Scuba-Centric Reading Glasses](https://www.trendhunter.com/trends/underwater-eyewear.md) - [Soft Oceanic Perfumes](https://www.trendhunter.com/trends/lets-dive-by-ds-durga.md) - [Tank-Free Diving Systems](https://www.trendhunter.com/trends/seeair-tankless-dive-system.md) - [Global Ice Bath Directories](https://www.trendhunter.com/trends/ice-bath-directories.md)