Geothermal soaking is Arenal’s signature evening experience, but the properties differ sharply: Tabacón emphasizes a landscaped, naturally flowing thermal river; The Springs offers a large resort complex with many pools; Ecotermales limits capacity for a quieter feel; and other parks prioritize slides, family facilities, or value. Day-pass prices, meal inclusions, age rules, and entry windows change, so compare the official options for your exact date.
Why It’s Worth Your Time
Arenal’s geothermal waters support everything from quiet garden bathing to large family-oriented thermal parks. Choose for atmosphere and location rather than simply counting pools. Resort guests may receive access advantages, while day visitors often select a timed package with or without a meal. Reserve popular evening sessions in peak periods and verify transport after dark.
What Stands Out
- Tabacón ($80): only natural thermal river, most iconic setting
- Ecotermales ($49, limited admission): most intimate adults experience — book ahead
- The Springs ($124 for 2 days): 28 pools, volcano and lake views
- Baldi ($30): most popular budget option — 25 pools, waterslides, swim-up bar
- Free El Choyin: same volcanic water, no facilities