Exploring Silfra: Facts and Features

Silfra, located in Iceland's Thingvellir National Park, offers a unique diving experience between the North American and Eurasian continental plates. Known for its crystal-clear waters, Silfra's visibility extends over 100 meters, making it one of the world's top cold-water dive sites. The water, filtered through underground lava rock, remains between 2-4°C year-round. Despite the cold, the site is accessible to anyone who can swim, offering a serene floating experience without the need for extensive diving skills.

Where is Silfra located?

• In the Pacific Ocean

• In the Atlantic Ocean

• In the Thingvellir National Park

• In the Sahara Desert

What makes Silfra's water so clear?

• It is mixed with saltwater

• It is heated by volcanic activity

• It is treated with chemicals

• It is filtered through underground lava rock

How deep is Silfra in some places?

• 5 meters

• 100 meters

• 42 meters

• 10 meters

What is the temperature range of Silfra's water throughout the year?

• 0 to 2 degrees Celsius

• 5 to 10 degrees Celsius

• 2 to 4 degrees Celsius

• 10 to 15 degrees Celsius

Why do fish usually not venture into Silfra?

• Due to the strong currents

• Due to the cold temperature

• Due to the lack of food

• Due to the high salinity

What creates the current in Silfra?

• Filtered spring water

• Diver movements

• Tidal forces

• Wind

Why does Silfra not freeze over in winter?

• Because of geothermal activity

• Because of the shallow depth

• Because of the constant slow-moving current

• Because of the high salt content

What kind of suits do divers wear in Silfra?

• Wetsuits

• Swimsuits

• Dry suits

• Thermal suits

What is the best feature of Silfra according to the video?

• Its depth

• Its warm water

• Its accessibility

• Its marine life

What do you need to know to try diving in Silfra?

• How to swim

• How to deep dive

• How to snorkel

• How to sail