Most countries that touch the sea touch only one ocean. Panama is special because its shape - long, thin and twisty - puts it between two huge oceans at once. From the city in the middle, the Caribbean is to the north and the Pacific is to the south.
The two coasts feel surprisingly different. The Caribbean side has bright turquoise water, white-sand beaches and coral reefs full of fish. The Pacific side has darker water, bigger tides (sometimes the sea goes out hundreds of metres!), and humpback whales that come to have their babies between July and October.
The tide on the Pacific side can rise and fall by more than five metres in a day. On the Caribbean side it barely moves - the change is smaller than the height of a school chair. Scientists are still studying exactly why two oceans, so close together, behave so differently.
Panamanian children who live in the middle of the country often have one favourite ocean. Some love the Caribbean for snorkelling. Some prefer the Pacific for surfing. A few say they like both - just on different days of the week.