The Fonts de l'Algar waterfalls emerge from karst springs that have carved the limestone bedrock of the Serra de Bèrnia for millennia, creating a series of crystalline pools and cascades that flow year-round at a constant 17 degrees Celsius. The site remained largely unknown beyond Callosa d'en Sarrià until the 1990s, when boardwalks and conservation paths transformed the natural gorge into a protected eco-park while preserving its wild character. The name Algar derives from the Arabic al-gar, meaning cave, referencing the subterranean channels that feed the springs from the aquifer below. Today, the guadalest and algar waterfalls day trip from benidorm pairs this botanical oasis with Guadalest, the fortified village perched 595 metres above sea level on a dolomite outcrop. Guadalest's castle dates to the Moorish period, though the 1644 and 1748 earthquakes reduced much of the original fortress to ruins. What remains—the Casa Orduña watchtower and a bell tower carved directly into living rock—clings to a narrow ridge accessible only through a tunnel hewn through the mountain itself. The village houses eight specialized museums within its 200 permanent residents, including collections of micro-miniatures and vintage motorcycles that draw collectors from across Europe. The Algar site protects 15 hectares of riparian forest where Mediterranean fan palms, holm oaks, and endemic flora thrive in microclimates created by constant mist from the falls. Five major cascades descend in stages through moss-covered boulders, each feeding turquoise pools deep enough for swimming during warmer months. Wooden walkways traverse the gorge at canopy level, offering vantage points over the 25-metre main waterfall and the irrigation channels that have diverted mountain water to Callosa's citrus groves since Moorish engineers designed the system in the 10th century. The conservation fee supports ongoing habitat restoration and controls visitor numbers to prevent erosion along the streambed. Guadalest's strategic position commanded the Guadalest Valley, a fertile basin that produced almonds, olives, and cherries for inland markets. The village reaches capacity quickly—its single-lane access road and limited parking mean that excursions departing Benidorm before 09:00 secure the calmest viewing conditions at both sites before midday crowds arrive from Alicante and Valencia.