Maly Semiachik Volcano, Kamchatka Peninsula Far East Russia

Maly Semiachik volcano – crater lake. Kamchatka Peninsula, Far East Russia. “Pale blue water fills the lake. The color may be due to fine silica particles.” Russia has several crater lakes, including two that are artificial since they were created by atomic testing.

La Cumbre volcano, Fernandina Island Galapagos

La Cumbre volcano, Fernandina Island, Galapagos. To illustrate how quickly a crater lake can change, this was photographed by astronauts aboard the International Space Station in 2002. But this crater lake has returned to its explosive beginnings. Wikipedia stated that it began erupting again in April 2009. It’s now the most active volcano of the Galapagos Islands.

Mt. Shirane Crater Lake, Japan

Kelimutu Colored Lakes - Komodo, Indonesia

Kelimutu Colored Lakes – Komodo, Indonesia. Home to Komodo National Park: Where Dragons Still Rule

Lonar Crater Lake, India

Lonar Crater Lake at Aurangabad, India. Lonar crater lake was formed by a meteor strike about 50,000 years ago.

Lago Biao

Lago Biao.It was worth the 2+ hour uphill hike to this crater lake, which is at about 2000m elevation and situated in the southern half of the island of Bioko.

Crater Lake National Park, Oregon & Crater Lake, Wizard Island

Top: Crater Lake National Park, Oregon, panorama. Bottom: Crater lake, Wizard Island.

Whakaari, New Zealand

White Island Crater Lake in New Zealand.

Ljótipollur, Landmannalaugar Iceland

Also in Iceland is Ljótipollur, Landmannalaugar. “The Ljótipollur is an explosion crater in Iceland in the Landmannalaugar area. Ljótipollur means something like Ugly modderpot, but it has really nice red colored walls and is filled with greenish water that contains many trout. A short side road from the intersection of the Fjallabaksleið and Landmannaleið leads to the top.”

Klausturhólar - Kerið, Iceland

Iceland, Klausturhólar- Kerið, a volcanic crater lake in the southwestern part of Iceland, “is approximately 55 m (180 ft) deep, 170 m (560 ft) wide, and 270m (890 ft) across. Kerið’s caldera is one of the three most recognizable volcanic craters because at approximately 3,000 years old, it is only half the age of most of the surrounding volcanic features. While most of the crater is steep-walled with little vegetation, one wall is sloped more gently and blanketed with a deep moss, and can be descended fairly easily. The lake itself is fairly shallow (7–14 metres, depending on rainfall and other factors), but due to minerals from the soil, is an opaque and strikingly vivid aquamarine.” 

"Devil's Slope", Argentina

154 square miles (400 sq kms) of volcanic area called Devil’s Slope, Argentina, is home to the world’s largest crater field. The Bajada del Diablo field is pocked with at least 100 depressions left by meteorite or comet collisions about 130,000 to 780,000 years ago. After capturing this image of a crater lake there, the photographer wrote, “The Celestial Equator: At the Celestial equator the stars are almost at the same distance from both celestial poles so they seem to travel in a straight line. The South Celestial pole is towards the top left of the photo. The North Celestial pole is below the horizon towards the bottom-right.”

"An Infernal Bath", New Zealand

‘An Infernal Bath’, New Zealand, Waimangu Volcanic Valley, Inferno Crater Lake.

Lake Marjorie, Kings Canyon National Park

Lake Marjorie, Kings Canyon National Park.Lakes in the High Sierra come in a number of colors. Lake Marjorie, at 11,132′ has an aquamarine ‘swimming pool’ tint. Crater Mountain dominates the skyline, with Pinchot Pass to the south.

The Okama Crater Lake, Japan

The Okama Crater Lake at Mount Zaō, Japan. According to Wikipedia, it is “also known as the ‘Five Color Pond’ because it changes color depending on the weather.” It “lies in a crater formed by a volcanic eruption in the 1720s. The lake is 360 meters (1,200 ft) in diameter and 60 m (200 ft) deep, and is one of the main tourist attractions in the area.”

Lake Pinatubo, Luzon

Lake Pinatubo is not the only such lake in the Philippines. This is the Crater Lake at the Mouth of Taal Volcano in Luzon.

Lake Pinatubo, Philipines

Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo has filled with water from monsoon rains. At 800 m (2,600 ft), it is the deepest lake in the Philippines.

Utah Moutains

Deepest crater lake in the Uintas Mountains of Utah. 

Lake Quilotoa

Lake Quilotoa is a water-filled caldera and the western most volcano in the Ecuadorian Andes. The crater is about 2 miles wide and the lake is about 820 feet deep. It is tinted green by dissolved minerals.