Run Class II–III rapids on the Balsa River outside La Fortuna—four hours of paddle time, volcanic geology, and riverside rainforest. This trip balances splashy rapids with accessible lines for paddlers with moderate fitness.
More ways to explore the area's outdoor wonders
The river opens like a chapter: first flat pools reflect the volcano, then riffles rise and push you into rhythm. Paddles dip, the guide's voice cuts through spray, and the Balsa—normally patient—starts to dare you forward. This is La Fortuna country, where Arenal's geology carved channels that now funnel weekend adrenaline.
Difficulty
moderate
Duration
4 hours
Fitness Level
Moderate cardiovascular fitness and the ability to follow brief, repeated paddling commands; good for regular hikers or active travelers
Wildlife
History
The river corridor reflects Arenal’s volcanic history—ash and lava flows redirected drainage patterns and created the steep channels the Balsa now runs through.
Conservation
Operators typically emphasize leave-no-trace practices and proper waste disposal; use biodegradable products and avoid disturbing riverbanks, which are key habitat for wildlife.
Reserve your spot on the White Water Rafting Class II & III on the Amazing Balsa River today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear secure river shoes
Closed-toe, grippy footwear prevents foot injuries when entering or exiting and helps scramble on wet rocks.
Hydrate before and after
Tropical heat and exertion dehydrate quickly—drink water before boarding and top up after lunch.
Use reef-safe sunscreen
Protect skin without adding harmful chemicals to the river ecosystem—reapply after splashes.
Listen to the safety briefing
Swims are possible in Class III sections—follow guide commands and practice the hold-on and lean-back techniques explained at the put-in.
Closed-toe river shoes
Protect feet from rocks and provide traction during wet launches and exits.
Quick-dry clothing
Dries fast after splashes and keeps you comfortable in tropical humidity.
Waterproof dry bag (small)
Keeps phone, documents, and snacks dry in a sealed pouch on the boat.
Reef-safe sunscreen
Protects skin and minimizes chemical impact on river ecosystems.