Arenal Volcano, in Spanish Volcán Arenal, is an active andesitic stratovolcano in north-western Costa Rica around 90 km northwest of San José, in the province of Alajuela, canton of San Carlos, and district of La Fortuna. The Arenal volcano measures at least 1,633 metres (5,358 ft). It is conically shaped with a crater spanning 140 metres (460 ft). Arenal is geologically considered a young volcano and the age is estimated to be less than 7,000 years.

Lake Arenal is an artificial lake in Costa Rica, located in the northern highlands of the country. It was enlarged to its present size as a part of a 1979 hydroelectric project by the Costa Rican government to provide electricity to the country. The lake is approximately 30 km long and almost 5 km at its widest point, making it the largest lake in Costa Rica at 85-square-kilometre (33 sq mi). It’s depth varies between 30 and 60 meters (100–200 feet) depending on the season.



The Town of Arenal was relocated to higher ground when the lake was expanded in 1979. The old towns of Arenal and Tonadora now lie abandoned at the bottom of the lake, with the new town of Arenal existing to the northeast on the lake.

Approaching Lake Arenal
Approaching Lake Arenal
Boarding Lake Arenal ferry
Boarding Lake Arenal ferry
Handsome assistant helps with tourist baggage
Handsome assistant helps with tourist baggage
Crossing the lake
Crossing the lake
Ferry driver
Ferry driver
Richard and Michael on the ferry
Richard and Michael on the ferry
Along the lake are seen some fine houses
Along the lake are seen some fine houses
Pictoral map of Arenal Volcano and LaFortuna town
Pictoral map of Arenal Volcano and LaFortuna town
The Arenal Volcano is massive and very impressive
The Arenal Volcano is massive and very impressive
Ferry landing on the other side of the lake
Ferry landing on the other side of the lake
Entering the town of LaFortuna
Entering the town of LaFortuna
Main street of LaFortuna
Main street of LaFortuna
Church in central LaFortuna
Church in central LaFortuna
Church in central LaFortuna
Church in central LaFortuna
Souvenir shops on LaFortuna
Souvenir shops on LaFortuna
Busy clothing store
Busy clothing store
Decorative tile floor in a restaurant
Decorative tile floor in a restaurant
Usual lunch of beans, chicken and rice
Usual lunch of beans, chicken and rice
Popular restaurant in LaFortuna
Popular restaurant in LaFortuna
Local flora
Local flora
Shops on main street
Shops on main street
Colorful waitress costume
Colorful waitress costume
Long-time denizen of LaFortuna
Long-time denizen of LaFortuna
Local police station
Local police station
Many tour operators in LaFortuna
Many tour operators in LaFortuna
Guidebook belonging to our guide
Guidebook belonging to our guide
Trek to the foot of the volcano though a forest
Trek to the foot of the volcano though a forest
Trek to the foot of the volcano though a forest;
Trek to the foot of the volcano though a forest; guide showing a tarantula hole
Trek to the foot of the volcano though a jungle
Trek to the foot of the volcano though a jungle
Trek to the foot of the volcano though a jungle
Trek to the foot of the volcano though a jungle
Guide imitating a bird call with his phone
Guide imitating a bird call with his phone
Monkey in a tree
Monkey in a tree
Trail signs
Trail signs
Small bridge through the jungle
Small bridge through the jungle
Mountain streams
Mountain streams
Toucan perched high in a tree
Toucan perched high in a tree
Toucan perched high in a tree
Toucan perched high in a tree
Close-up of a toucan with colorful beak
Close-up of a toucan with colorful beak
Large monkey in a tree
Large monkey in a tree
Monkeys in the trees
Monkeys in the trees
Across this bridge is a viewing point of the volcano
Across this bridge is a viewing point of the volcano to watch lava flows
Overcast evening looking toward the volcano; the mist lifted and
Overcast evening looking toward the volcano; the mist lifted and we saw a bit of red lava spewing out
Photo os the Arenal Volcano exploding on August 17 of
Photo os the Arenal Volcano exploding on August 17 of 1996
Adjacent to the Arenal volcano is Baldi Hot Springs, a
Adjacent to the Arenal volcano is Baldi Hot Springs, a natural hot water baths with a dozen pools of different temperatures, waterfalls and a water slide
Fuzzy photo of entrance to Baldi Thermal Baths near the
Fuzzy photo of entrance to Baldi Thermal Baths near the volcano
Baldi Thermal Baths has 12 pools of different temperatures; we
Baldi Thermal Baths has 12 pools of different temperatures; we visited Baldi at night
Pools are different temperatures  and surrounded with native flora
Pools are different temperatures and surrounded with native flora
Most pools are comfortably warm, a couple are hot
Most pools are comfortably warm, a couple are hot
Seople enjoy standing under the warm waterfalls
Seople enjoy standing under the warm waterfalls
Some pools are big enough for swimming
Some pools are big enough for swimming
This pool has a snack bar; patrons can stand in
This pool has a snack bar; patrons can stand in the water and have a drink or watch TV
Sculptural waterfalls
Sculptural waterfalls
Water slide at Baldi
Water slide at Baldi
Baldi Thermal Baths has 12 pools of different temperatures
Baldi Thermal Baths has 12 pools of different temperatures
Costa Rican newspaper photo of volcanic activity
Costa Rican newspaper photo of volcanic activity
Colorful wagon at a restaurant
Colorful wagon at a restaurant
Colorful wagon at a restaurant
Colorful wagon at a restaurant
Coffee maker
Coffee maker
Local guy with his pet parakeet
Local guy with his pet parakeet
Tourists feeding lemurs
Tourists feeding lemurs
Leaving Lake Arenal
Leaving Lake Arenal
Departing from Arenal; wind farm in the hills
Departing from Arenal; wind farm in the hills
Overlooking Lake Arenal
Overlooking Lake Arenal
Souvenir stall overlooking Lake Arenal
Souvenir stall overlooking Lake Arenal
Handmade jewlery
Handmade jewlery
Local handicrafts
Local handicrafts
Carving a ball
Carving a ball