Located in the north-western Costa Rica, the Arenal Volcano is an active stratovolcano. It is approximately 1,633 metres tall and has a crater 140 metres in diameter. The crater has been formed by eruptions that started around 7,000 years ago. There is also seismic activity and gases that escape from springs that surround the mountain.
Eruptions began around 7,000 years ago
Located in Costa Rica, Arenal Volcano has a history of eruptions. Over the last four thousand years, there have been ten large explosive eruptions.
The volcano was initially formed as a perfect conical peak. The first eruption occurred about 7,000 years ago. After a period of dormancy, it erupted again. The eruption was accompanied by a hot gas cloud that caused deaths in the nearby Tabacon river valley. In the summer of 1968, the temperatures in the surrounding hot springs rose.
The explosion ejected large lava rocks at high speeds. They landed up to five kilometers away. They left a 25-meter diameter impact crater. These balls of lava also broke through sedimentary rocks. The resulting tephra buried three villages. Almost 100 people died.
Arenal Volcano is one of a group of volcanoes that are part of a chain of volcanic activity. It has a history of major explosive eruptions and lava flows. The most recent period of activity began with a massive explosion in 1968. The lava flow erupted over two days. This was followed by pyroclastic flows from vents at the top of the volcano.
Lake Arenal is Costa Rica's largest lake
Located near the Arenal Volcano, Lake Arenal is a major attraction for both nature lovers and water sports enthusiasts. This pristine blue lake is home to a number of different species of fish. Rainbow bass are particularly popular. Locally they are known as "guapote."
Although there is no public beach, you can relax by the lake or participate in water sports. There are a number of boat tours and half-day excursions available to help you explore the lake.
The waters of Lake Arenal are surrounded by rolling hills and verdant tropical forests. You can also hike or ride horseback through the area. The area is also perfect for birdwatching.
The main draw of the lake is its great fishing. There are several different types of fish, including Machaca and Rainbow Bass. You can try fishing in the shallow coves, but it's best to use a 6- or 8-foot rod. If you want to fly fish, you should use a 3' of 13# fluorocarbon tippet and a 6' leader.
Seismic activity and gases escaping from springs around the mountain
Despite the dramatic decline in eruptions and lava flows since 2010, Arenal Volcano is still active. The volcano remains an attractive destination for tourists, and continues to fuel the surrounding therapeutic hot springs. A few minor eruptions have occurred, however.
Seismic activity has also been recorded at Arenal. A few earthquakes have generated tsunamis, which can cause death. Another reason why there have been fatalities near the volcano is due to avalanches discharging into lakes, which can generate tsunamis.
The majority of incidents within 5 km of the volcano occurred in VEI 1-3 eruptions. The remaining incidents were considered to involve local residents. This suggests that the risk associated with the hazard increases with increasing distance.
In the past four centuries, the average number of fatalities per incident has increased. The majority of deaths at distances between 5 and 10 km were related to pyroclastic density currents. The largest incidents at distances between 5 and 15 km were lahars. The majority of incidents at distances above 10 km were tephra-related.
Heliconia Restaurant in Hotel Arenal Kioro
Located in the hotel Arenal Kioro, the Heliconia Restaurant has a spectacular view of the Arenal Volcano. The restaurant serves a variety of national and international dishes. The menu includes locally grass-fed beef and shellfish. The buffet breakfast is included in the price. It is open from 6:30 am to 10:00 pm.
Guests have access to the natural hot thermal springs, which are within a seven-minute drive from the hotel. Guests can also use the spa facilities. The spa offers therapeutic treatments with volcanic mud and aromatized lotions.
The Arenal Vista Lodge is a great location for fishing, boating, and other water sports. There are bicycle rentals available. The lodge also has a terrace that offers a panoramic view of the Arenal Volcano.
The hotel's 53 suites feature Juliet balconies and private bathrooms. They have hot water, air conditioning, telephone, and satellite television. There are also hydro-massage hot tubs in each room.
Tours run rain or shine
Whether you are looking to take part in an adventure activity, or are simply seeking some down time, Arenal Volcano tours are sure to pique your interest. There are a wide variety of activities, and each offers a unique experience. Choosing one to fit your itinerary will ensure an enjoyable, memorable trip.
Aside from Arenal's natural hot springs and water sports, the area offers an abundance of wildlife. There are birds, monkeys, snakes, and other creatures to observe.
The best way to see Arenal is to book a combo tour. This will allow you to visit several must-see sights in one day. For example, you can visit the Hanging Bridges, see the Arenal Volcano from above, and hike a nearby rainforest.
Another option is to rent a scooter. However, this is not as convenient when it rains.
