Discover San Juan's Condado Lagoon from a whole new perspective — through the floor of a crystal-clear glass-bottom kayak. On this beginner-friendly eco tour, paddle calm, protected waters while the underwater world drifts by beneath you. Keep your eyes open for the lagoon's famous residents: gentle manatees grazing on seagrass, plus rays, sea stars, and tropical fish that thrive in this protected estuary reserve. Your certified naturalist guide shares the stories behind the ecosystem and the conservation work that earned the lagoon its nickname, the "blue heart" of San Juan. Paddle past lush mangroves and learn how their roots protect the coast and shelter young marine life. Along the way, take in sweeping views of the 18th-century Fortín San Gerónimo rising above the water. With a small-group format, safety briefing, all equipment, and free digital photos included, it's an easy, memorable hour on the water — perfect for couples, families, solo travelers, and nature lovers alike.