Charge through 10 kilometers of Class II–III rapids beneath Arenal’s watchful slopes. This 2.5-hour white-water section—part of a 5-hour outing from La Fortuna—pairs steady adrenaline with local fruit stops and a traditional casado lunch.
More ways to explore the area's outdoor wonders
The raft hits a surge and the rainforest leans in—humid air, bright green banks and the steady slap of oars. For 2.5 hours the Balsa River pushes a steady string of Class II–III rapids across roughly 10 kilometers, alternating open, splashy waves with narrower, rock-strewn channels that demand teamwork and quick paddling.
Difficulty
moderate
Duration
2.5–5 hours
Fitness Level
Good cardiovascular fitness and upper-body endurance recommended; expect sustained paddling and brief swims.
Wildlife
History
The river corridor reflects Arenal’s volcanic history; periodic lava and ash flows reshaped channels and created the rich soils farmed by local communities.
Conservation
Operators encourage biodegradable sunscreen and discourage litter; sticking to group sizes and established put-in/exit points reduces bank erosion and wildlife disturbance.
Reserve your spot on the Balsa River White Water Rafting class 2/3 in Costa Rica today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Secure footwear
Wear closed-toe water shoes with a good sole—flip-flops are not safe during rapids or portages.
Hydrate before boarding
Bring a full water bottle and hydrate pre-trip; guides provide bottled water but conditions are hot and humid.
Know the limits
Maximum weight ~220 lb and minimum age 5; be honest at booking to ensure proper raft placement.
Follow the guide’s commands
Listen to safety briefings and paddle commands—swims and self-rescue are part of the plan in steeper sections.
Closed-toe water shoes
Protect feet on rocks and provide traction during wet entry and exit.
Quick-dry clothing
Light, fast-drying fabrics keep you comfortable during and after the run.
Biodegradable sunscreen
Protects skin while minimizing impact to river and wildlife.
summer
Small dry bag or waterproof case
Keeps phone, keys, and small items dry during the trip.