Your Guide to Ultimate San Blas Sailing Itineraries When it comes to experiencing the San Blas Islands, we recommend more than 5 nights for the most rewarding adventure. Why? Because with over 365 islands—hundreds uninhabited and untouched by the modern world and mass tourism—you’ll want the time to explore their diversity: from powder-white sandbanks to lush coconut-fringed islets, vibrant coral reefs, and encounters with the Guna culture. A longer trip means slower sailing,