Black volcanic sand with a glacier sitting atop an active volcano in the background. (Yes, a glacier on top of a volcano is a thing in Iceland 😅) You can see the icecaps in the back ground. When the volcano Katla erupts, the heat rapidly melts the overlying ice, leading to massive floods which can be very dangerous and have shaped the landscape around the glacier. 📍Highlands, Southern Iceland Next highlands departures: * July 26- Aug 1 * 23-29 August More dates and itineraries are also availab

Glacier Peak is Washington's most remote stratovolcano, towering high in the Cascade Mountains some 50 miles from the waters of Puget Sound. But in the not-so-distant past, eruptions from this volcano sent huge mudflows all the way down to the Skagit Flats - and it could happen again. Watch more episodes of Nick on the Rocks on the Cascade PBS app. https://bit.ly/3AVJTz7 | Cascade PBS