BAC Open Water Circuit – Arenal | Arenal Reservoir, Tilarán (Guanacaste)

For endurance sports enthusiasts and nature lovers, the BAC Open Water Circuit heads to the Arenal Reservoir for a unique open-water swimming competition. The event starts at 5:00 a.m. and offers participants the chance to swim in Costa Rica’s largest artificial lake, surrounded by spectacular scenery with the iconic Arenal Volcano as a backdrop.