Best Caldera

Crater Lake is a stunning freshwater lake situated within Oregon’s volcanic caldera. It formed after the cataclysmic eruption of Mount Mazama around 7,700 years ago, creating one of North America's deepest lakes at nearly 600 meters. The exceptionally clear water and dramatic scenery make it a signi...

The Kīlauea summit fumaroles are volcanic gas vents located within the Halemaʻumaʻu crater of Kīlauea, an active shield volcano in Hawaii Volcanoes National Park. These openings continuously emit steam and sulfur dioxide gas, creating visible plumes and contributing to volcanic air pollution known a...

Crater Lake National Park protects a stunning caldera lake within Oregon’s Cascade Mountains. Formed by the cataclysmic eruption and subsequent collapse of Mount Mazama over seven thousand years ago, it features exceptionally clear water and dramatic volcanic landscapes. The park is accessible to vi...

Lake Toba’s tuff cone represents a massive volcanic eruption during the Pleistocene epoch. The resulting deposit, composed of fine-grained volcanic ash and rock fragments, forms a large caldera within Sumatra, Indonesia. This geological feature is notable for its immense scale—one of the largest kno...

Uzon Caldera mudpots are found within Russia’s Kamchatka Peninsula, a remarkable geothermal area formed by volcanic activity approximately 40,000 years ago. These mudpots represent a unique and highly active hydrothermal ecosystem. Scientists and researchers studying volcanology, geology, and extrem...

The Ngorongoro Savanna is a remarkable enclosed grassland within a massive volcanic caldera in Tanzania’s East Africa region. This UNESCO World Heritage Site supports an exceptionally dense concentration of wildlife, including lions, elephants, and rhinos, offering unparalleled opportunities for obs...

The Uzon Fumarole Field encompasses a series of active mudpots within Kamchatka’s Valley of Geysers in Russia. These geothermal features are notable for their intense bubbling and steaming activity fueled by subsurface hydrothermal systems. The mudpots display vibrant colors due to mineral deposits,...

Lake Mashu is a caldera lake located in Akan National Park on the eastern side of Hokkaido, Japan. It is renowned for its exceptional water clarity, with historical transparency measurements exceeding 40 meters, placing it among the clearest lakes on Earth. The lake has no inlet or outlet, and its w...

Deception Island is an active volcano in Antarctica's South Shetland Islands with a flooded caldera known as Port Foster. The island features geothermal fumaroles that vent steam and heat directly onto the beaches. These thermal anomalies create localized areas of warm sand and water in an otherwise...

The Nisyros volcano mudpots are geothermal surface features on the Greek island of Nisyros in the southeastern Aegean Sea's Dodecanese archipelago. Located primarily within the Stefanos crater, a shallow depression in the island's central caldera, the mudpots emit steam and sulfurous gases while bub...

Fumaroles within the Krakatau caldera represent ongoing volcanic activity following the devastating 1883 eruption. These vents release gases—primarily steam and sulfur dioxide—from deep beneath the seafloor. The phenomenon is notable due to its location in a region of significant geological instabil...

Lake Shikotsu is a freshwater caldera lake located in Shikotsu-Toya National Park on the northern Japanese island of Hokkaido. Reaching a maximum depth of approximately 363 meters, it ranks among the deepest lakes in Japan. Because of its significant depth and volume, the lake rarely freezes over du...

The Baekdu Massif is a mountainous region dominated by Mount Paektu, a 2,744-meter stratovolcano situated on the border between China and North Korea. The volcano features a large caldera containing Heaven Lake, a significant crater lake. It is culturally and mythologically significant, serving as t...

Lake Towada is a large freshwater caldera lake straddling the border between Aomori and Akita prefectures on the northern Japanese island of Honshu. It is the largest caldera lake on the island and reaches a maximum depth of over 300 meters. Known for its exceptional water clarity, the lake is a pop...

The Santorini fumaroles are active submarine and subaerial gas vents located within the volcanic caldera of Santorini, Greece. These hydrothermal vents are concentrated primarily on the islands of Nea Kameni and Palea Kameni. The escaping gases, which consist largely of carbon dioxide and hydrogen s...

The Phlegraean Fields mudpots are geothermal features situated within a large volcanic caldera west of Naples, Italy. Found in areas such as the Solfatara crater, these mudpots are formed when surface water is heated by underground magma, dissolving surrounding volcanic rock into a bubbling clay. Th...

The Krafla caldera fumaroles in Iceland are notable for extensive solfataras and superheated steam vents that fueled the development of the 1977 Krafla geothermal power plant.

Lake Akan is a caldera lake located in the eastern part of Hokkaido, Japan, situated within Akan Mashu National Park. The lake is known for its colonies of marimo, a rare growth form of the filamentous green algae Aegagropila linnaei that forms distinct, velvety spheres. These algae colonies were de...

The Brooks Caldera 7 is a trail running shoe designed for runners seeking maximum cushioning and protection. Its updated DNA LOFT v3 midsole delivers superior impact absorption ideal for long distances and challenging trails. This shoe is particularly suited for ultra-runners and those prioritizing...

The Viti Crater mudpots are located within Iceland’s Askja caldera, remnants of the 1724 Mývatn Fires. These active geothermal features display intensely heated water interacting with volcanic rock creating thick, bubbling mud deposits. The unique conditions—high temperatures and mineral-rich ground...

The Ksudach mudpots are geothermal features situated inside the massive, historic caldera of Ksudach volcano in Russia's Kamchatka Peninsula.

Lake Toya is a freshwater caldera lake located in southwestern Hokkaido, Japan, within Shikotsu-Toya National Park. It was formed by a massive volcanic eruption and is known for being mostly ice-free throughout the winter. The lake features Nakajima, a group of forested islands in its center that se...

Located on the Greek island of Nisyros, the Polyvotis fumaroles represent significant geothermal activity within the Stefanos crater. These vents release intense sulfurous gases due to ongoing volcanic processes within the caldera. Scientists and volcanologists study these emissions to understand th...

Akademia Nauk is a volcanic caldera in the southern part of Russia's Kamchatka Peninsula, within a region shaped by subduction-related volcanism. The caldera contains Karymsky Lake and is associated with hydrothermal activity, while the nearby Karymsky volcanic system remains active. Any mudpots in...

Torfajökull Mudpots are geothermal springs located in Iceland's largest rhyolite massif, the Torfajökull volcanic complex in the Highlands.

Krafla fumaroles are geothermal gas vents in northeast Iceland within the Krafla caldera, an active volcanic system. The Krafla geothermal power plant, commissioned in 1977, harnesses the area's geothermal resources to supply electricity. The region experienced significant volcanic activity during t...

The Uzon Caldera fumaroles are a system of hydrothermal vents located within a volcanic caldera on the Kamchatka Peninsula in Russia. The caldera, measuring approximately nine by twelve kilometers, was formed roughly 40,000 years ago and remains an active geothermal area. These vents release volcani...

The Lāhikmanu fumaroles are geothermal gas vents located within Hawaii's Kīlauea volcano, an intensely active shield volcano that continually reshapes the surrounding landscape.

The Fernandina fumaroles are volcanic gas vents located on the summit caldera of Fernandina Island in the Galápagos archipelago of Ecuador. Fernandina is a highly active shield volcano characterized by its large, 6-kilometer-wide caldera, which frequently experiences lava lake activity and explosive...