🌊🚤👮

#maritime border #coast guard #border patrol #water boundary #sea border #patrulla fronteriza #limite maritimo

🌳🌲|💧|🌲🌳

#river dividing land #riverbank #water boundary #natural separation #forest river #landscape split

🌳🌊|🌊🌳

#river divider #water boundary #land separation #natural separation #riparian border

🌊🇺🇸🇲🇽

#rio grande river #US Mexico border #water boundary #rio bravo