PortAventura Caribe Aquatic Park Caribe Aquatic Park, near Salou, is one of the main attractions of Port Aventura, Spain's most-visited theme park. Little ones can play Jack Sparrow in the pirates' playground, while older visitors can try the highest free-fall slide in Europe… if their stomachs can take it.

As of 2026, Siam Park in Tenerife (Costa Adeje) remains the most popular and highly rated water park in Spain, frequently topping global lists for its "Thai-inspired" architecture and record-breaking slides. Its most famous attraction, the "Tower of Power," features a near-vertical 28-meter drop that sends riders through a transparent tunnel submerged in a shark tank. Other major contenders in the Spanish market include Aqualandia in Benidorm, which is famous for "Verti-Go" (one of the world's tallest capsule slides), and PortAventura's Costa Caribe Aquatic Park near Barcelona. Siam Park's dominance is attributed to its "all-year" operating schedule made possible by the Canary Islands' mild climate, as well as its massive wave pool—which can generate the largest man-made waves in the world—making it a primary destination for both families and high-adrenaline thrill-seekers visiting the Mediterranean.