![Costa Rica. Lake Arenal (Spanish: Lago Arenal). The largest lake in Costa Rica was tripled in size by the construction of the Arenal dam. foto de Stock | Adobe Stock Costa Rica. Lake Arenal (Spanish: Lago Arenal). The largest lake in Costa Rica was tripled in size by the construction of the Arenal dam. foto de Stock | Adobe Stock](https://as2.ftcdn.net/v2/jpg/03/13/88/73/1000_F_313887353_5tHvP9JW8gEkN7gJhjxNDLplBJjh1Oyx.jpg)
Costa Rica. Lake Arenal (Spanish: Lago Arenal). The largest lake in Costa Rica was tripled in size by the construction of the Arenal dam. foto de Stock | Adobe Stock
![Arenal Volcano National Park, Costa Rica, A view of the eastern end of Lake Arenal, photographed from Arenal volcano. A hydroelectric dam holding back the lake provides about 20 percent of Costa Arenal Volcano National Park, Costa Rica, A view of the eastern end of Lake Arenal, photographed from Arenal volcano. A hydroelectric dam holding back the lake provides about 20 percent of Costa](https://www.superstock.com/cdn/1848/Comp/1848-49429750.webp)
Arenal Volcano National Park, Costa Rica, A view of the eastern end of Lake Arenal, photographed from Arenal volcano. A hydroelectric dam holding back the lake provides about 20 percent of Costa
![Arenal dam at the foot of the Arenal volcano, La Fortuna, Costa Rica, Central America Stock Photo - Alamy Arenal dam at the foot of the Arenal volcano, La Fortuna, Costa Rica, Central America Stock Photo - Alamy](https://c8.alamy.com/comp/CXYW09/arenal-dam-at-the-foot-of-the-arenal-volcano-la-fortuna-costa-rica-CXYW09.jpg)