Low tide reveals muddy shore with distant view of bridge, Casco Viejo, Panama

low tide muddy shore bridge distant view partly cloudy sky panama panama city casco viejo coastal landscape nature exposed seabed daytime low water mudflats horizon scenery outdoors empty shore wetland expanse water receding environmental bay marshland coastal ecosystem cloud cover scenic vast tide exposed ground shoreline marine tidal flats mud aquatic overcast weather natural beauty panorama tranquil untouched horizon line emptiness remote serene environment